Proshka's questions

这是它的编译方式：

class Program
{
    delegate void Message();

    private static void GoodMooning()
    {
        Console.WriteLine("Доброе утро");
    }

    private static void GoodEvening()
    {
        Console.WriteLine("Добрый вечер");
    }

    static void Main(string[] args)
    {
        Message message;
        if(DateTime.Now.Hour < 12)
        {
            message = GoodMooning;
        }
        else 
        {
            message = GoodEvening;
        }
        Console.WriteLine(DateTime.Now.Hour);
        message();
        Console.ReadKey();
    }       
}

但它不会像这样编译并写出消息变量未初始化：

class Program
{
    delegate void Message();

    private static void GoodMooning()
    {
        Console.WriteLine("Доброе утро");
    }

    private static void GoodEvening()
    {
        Console.WriteLine("Добрый вечер");
    }

    static void Main(string[] args)
    {
        Message message;
        int a = 2;
        if(a < 12)
        {
            message = GoodMooning;
        }
        message();
        Console.ReadKey();
    }       
}

global $post;
$args = array('category_name'=>'Marketing Social','tag'=>'social','post_type'=>'any');
$result = get_post($args);
print_r($result);

分类营销社会存在，有一个标签social，在这个分类的数据库中和这个标签下有3条记录。get_post()不从数据库中检索任何内容。可能是什么问题呢？

$query = new WP_Query('p=44');
print_r($query);

此代码不按 ID 显示帖子。怎么了？

如何在 Wordpress 中找到所需的挂钩以将您的功能挂钩。也许有某种搜索原理，至少告诉我一些有关搜索方法的信息。

如何调整这个svg的大小？更改宽度和高度会导致图像消失/裁剪

<?xml version="1.0" ?>
<svg height="1024" width="1024" xmlns="http://www.w3.org/2000/svg">
    <g>
        <title/>
            <g fill="#fff" id="svg_1" transform="translate(-10,1024) scale(0.1,-0.1) ">
                <path d="m4820,9439c-1036,-77 -1981,-503 -2723,-1228c-976,-952 -1444,-2300 -1271,-3654c216,-1693 1410,-3103 3050,-3602c1268,-386 2679,-157 3754,608c1321,941 2008,2502 1804,4100c-216,1693 -1410,3103 -3050,3602c-488,149 -1057,212 -1564,174zm331,-2689c222,-22 333,-57 383,-122c13,-18 34,-62 46,-98c26,-76 27,-163 11,-813c-10,-406 -4,-531 29,-621c39,-103 125,-150 201,-111c69,36 230,213 335,370c243,360 391,639 569,1070c36,85 84,141 134,154c20,6 303,11 651,12l615,2l52,-22c67,-30 93,-69 93,-140c0,-135 -141,-412 -383,-751c-33,-47 -158,-213 -277,-370c-263,-346 -320,-427 -360,-511c-50,-106 -38,-193 41,-296c23,-29 139,-146 258,-260c333,-319 484,-487 607,-671c88,-133 122,-231 108,-315c-7,-46 -53,-101 -105,-128c-62,-31 -157,-37 -680,-44l-495,-7l-80,27c-204,68 -340,181 -649,539c-171,198 -298,295 -386,296c-81,0 -184,-108 -228,-242c-30,-90 -41,-159 -50,-315c-11,-184 -33,-227 -146,-274c-41,-18 -551,-24 -686,-10c-271,30 -522,115 -771,262c-361,212 -582,402 -819,704c-412,526 -693,974 -1034,1650c-132,263 -287,603 -312,684c-25,84 11,153 93,179c28,9 184,14 544,19l505,5l59,-22c93,-36 132,-82 195,-235c54,-129 345,-713 436,-876c93,-165 192,-303 277,-385c105,-103 152,-128 226,-122c63,6 80,20 119,105c95,205 110,898 25,1170c-49,155 -122,214 -324,257c-35,8 -35,20 -3,67c78,112 217,166 482,188c145,12 575,13 694,1z" fill="#61B7B0" id="svg_2"/>
            </g>
    </g>
</svg>

显然问题是在这个？或者如何为发生事件的元素执行函数？

function color() {
        $(this).children().css('backgroundColor','red');
    }
    
$('#one').click(function () {
    color();
});
$('#two').click(function () {
    color();
});

.item{
        display: block;
        height: 50px;
        margin-bottom: 50px;
        border: 1px solid #0C9A9A;
    }
    .item div{
        display: block;
        height: 100%;
    }

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="one" class="item">
    <div></div>
</div>
<div id="two" class="item">
    <div></div>
</div>

菜单需要从管理面板组织。此菜单结构由 Wordpress 生成

<ul>
  <li>1</li>
  <li>
    <ul>
      <li>11</li>
      <li>12</li>
      <li>13</li>
    </ul>
  </li>
  <li>2</li>
</ul>

<ul>
  <li>1</li>
  <li>
    <div>
      <ul>
        <div>
          <li>11</li>
        </div>
        <div>
          <li>12</li>
        </div>
        <div>
          <li>13</li>
        </div>
      </ul>
    </div>
  </li>
  <li>2</li>
</ul>

最初的：

<style>
   .scheme{
      min-width: 750px;
   }
</style>

<div class="all">
    <div class="container">
        <div class="row">
            <div class="col-xs-12 ">
                <p>content</p>
            </div>
        </div>
    </div>
    <div class="scheme">

    </div>
</div>

1. 有一个块.container。这是引导容器。当屏幕宽度更改为较小的一侧时，它会按比例减小。
2. 有一个块.scheme。此容器将包含不允许调整大小超过 750 像素的屏幕宽度的内容

必需的：

1. 当屏幕达到 750 及以下时，Bootstrap 块按预期工作
2. 该块.scheme应保持至少 750 像素宽，但只能滚动该块的宽度。即整个页面在Bootstrap网格下工作，这个block不会阻止页面被缩放，同时用户有机会使用水平滚动查看它。

<div class="col-md-6 col-xl-4">
    <div class="input-field">
      <form id="callphone">
       <!-- Hidden Required Fields -->
       <input type="hidden" name="project_name" value="a">
       <input type="hidden" name="admin_email" value="b">
       <input type="hidden" name="form_subject" value="c">
       <!-- END Hidden Required Fields -->
       <input id="phone-email" name="phoneemail" class="form-control" type="text"size="40" required>
       <label for="phone-email" class="animated-label">введите ваш email или номер телефона</label>
      </form>
     </div>
</div>
<div class="col-md-6 col-xl-4">
     <div class="buttons">
       <div id="sub" class="callback">
         <p>заказать<br> обратный звонок</p>
       </div>
       <div class="send-email">
         <p>отправить<br> e-mail </p>
       </div>
     </div>
</div>

//form email+call
$('#sub').click(function () {
    $('#callphone').submit(function () {
        let th = $(this);
        $.ajax({
            type: "POST",
            url: "./mail.php", 
            data: th.serialize()
        }).done(function() {
            alert("www");
            setTimeout(function() {
                // Done Functions
                th.trigger("reset");
            }, 1000);
        });
        return false;
    })
});

Требуется по id вывести соответственно содержимое ["thumb"]


[0]=>
array(9) {
  ["product_id"]=>
    string(2) "36"
  ["thumb"]=>
    string(65) "http://t/image/cache/catalog/armature-500x500.jpg"
  ["name"]=>
    string(42) "Арматура А1 ф10 ст3сп 11,7м"
  ["description"]=>
    string(102) "any text"
  ["price"]=>
    string(6) "1.6р."
  ["special"]=>
    bool(false)
  ["tax"]=>
    bool(false)
  ["rating"]=>
    float(0)
  ["href"]=>
    string(34) "http://t.loc/ipod-nano"
}
[1]=>
 array(9) {
  ["product_id"]=>
    string(2) "41"
  ["thumb"]=>
    string(65) "http://t.loc/image/cache/catalog/armatura-500x500.png"
  ["name"]=>
    string(38) "Арматура А1 ф18 А240 11,7м"
  ["description"]=>
    string(183) "Арматура стальная.
  ["price"]=>
    string(9) "1566.0р."
  ["special"]=>
    bool(false)
  ["tax"]=>
    bool(false)
  ["rating"]=>
    float(0)
  ["href"]=>
    string(29) "http://t.loc/imac"
}

wp-config.php

 define( 'WP_DEBUG', true );
 define( 'WP_DEBUG_DISPLAY', true );

在浏览器中：

仅此而已。问：我怎样才能找出错误是什么？

this在对象中创建的函数内部的调用Vue指向“Vue”对象本身。如何引用this发生事件的元素 - 在这种情况下，单击

<div id="app">
  <div class="menu-item">          
       <div class="item active" v-on:click="menuItem">К</div>
       <div class="item">С</div>
       <div class="item">П</div>
       <div class="item">O</div>
  </div>
</div>

<script>
    var app = new Vue({
        el: '#app',
        methods: {
            menuItem: function (event) {
                let elements = document.querySelectorAll('.menu-item > .item');
                for (let elem of elements) {
                    if(elem.classList.contains('active')){
                        elem.classList.remove("active");
                        console.log(this);
                    }
                }
            }
        }
    })
</script>

控制台错误：未定义 Vue

如果您通过 CDN 连接 - 一切正常

虽然输出文件包含main.66905f9e91666cf52fc4.js?da38ad338a15dcb4c609代码vue.js

我的行动：

1. 下载 npm i vue 包

2. 在 index.js 中导入 -> 导入 'vue'

3. 在 webpack 配置 -> index.js 入口点 -> 出口点 -> dist/js/main.js

4. main.js 成功包含在页面底部

5. 检查 main.js 并在那里找到缩小的 vue.js

6. 但是 Vue 的代码不起作用

webpack.config.js

// Webpack v4
const path =                    require('path');
const MiniCssExtractPlugin =    require('mini-css-extract-plugin');
const FileManagerPlugin =       require('filemanager-webpack-plugin');
const { CleanWebpackPlugin } =  require('clean-webpack-plugin');
const HtmlWebpackPlugin =       require('html-webpack-plugin');
const WebpackMd5Hash =          require('webpack-md5-hash');

module.exports = {
  entry: { main: './src/js/index.js' },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'js/[name].[chunkhash].js'
},
module: {
    rules: [
        {
            test: /\.js$/,
            exclude: /node_modules/,
            use: {
                loader: "babel-loader"
            }
        },
        {
            test: /\.scss$/,
            use:  [  'style-loader', MiniCssExtractPlugin.loader, 'css-loader', 'postcss-loader', 'sass-loader']
        },
        {
            test: /\.(png|jpe?g|gif)$/i,
            loader: 'file-loader',
            options: {
                name: 'images/[name].[ext]',
            }
        }
    ]
},
plugins: [
    new CleanWebpackPlugin(),
    new MiniCssExtractPlugin({
        filename: 'style.[contenthash].css'
    }),
    new FileManagerPlugin({
        onEnd: {
            copy: []
        }
    }),
    new HtmlWebpackPlugin({
        inject: false,
        hash: true,
        template: './src/index.html',
        filename: 'index.html'
    }),
    new WebpackMd5Hash()
]

}

包.json

"devDependencies": {
"autoprefixer": "^9.7.3",
"babel-core": "^6.26.3",
"babel-loader": "^8.0.6",
"babel-preset-env": "^1.7.0",
"clean-webpack-plugin": "^3.0.0",
"css-loader": "^3.2.1",
"cssnano": "^4.1.10",
"file-loader": "^5.0.2",
"filemanager-webpack-plugin": "^2.0.5",
"html-webpack-plugin": "^3.2.0",
"mini-css-extract-plugin": "^0.8.0",
"node-sass": "^4.13.0",
"postcss-loader": "^3.0.0",
"sass-loader": "^8.0.0",
"style-loader": "^1.0.1",
"vue-loader": "^15.7.2",
"webpack": "^4.41.2",
"webpack-cli": "^3.3.10",
"webpack-dev-server": "^3.9.0",
"webpack-md5-hash": "0.0.6"
},
"dependencies": {
  "@babel/core": "^7.7.4",
  "bootstrap": "^4.4.1",
  "jquery": "^3.4.1",
  "popper.js": "^1.16.0",
  "vue": "^2.6.10"
}

index.js

import 'vue';

索引.html

    </footer>
<script src="js/main.66905f9e91666cf52fc4.js?da38ad338a15dcb4c609"></script>
<script>
    var app = new Vue({
        el: '#app',
        data: {
            message: 'Hello Vue!'
        },
        methods: {
            setMessage: function(event){
                this.message = event.target.value;
            }
        }
    })
</script>

admin/index.php?route=catalog/product/edit&user_token=xpBmtjPtwnIIy2OdtS1Z1fe6Zmvjki2w&product_id=42

找不到此模板进行编辑

这不是一个：admin\view\template\catalog\product_form.twig

事实上，在 Opencart3 中，{{}} 指令负责在 .twig 模板中显示变量。在 VUE 中，{{}} 指令还负责显示变量。结果，当连接到VUE twig模板时，什么都没有显示

树枝模板：

 <section id="app">
   <p v-on:click="delBr">{{ age }}</p>
 </section>

<script>
var app = new Vue({
    el: '#app',
    data: {age:25},
    methods: {
        delBr: function(){
            var width = document.body.clientWidth;
            if(width < 992)
                console.log(width)
        }                
})
</script>

delBr 功能有效

{% for category in categories %}
   <li><a href="{{ category.href }}">{{ category.name}}</a></li>
{% endfor %}

要求只显示指定数组的前三个值

html:<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">

CSS：.item-main-ldown:before position: absolute content: '\f31d' display: block font-family: "Material Icons" color: #ffffff left: 0 top: 90px font-size: 46px

不显示

如何在 Adob​​e XD 中包含或使用图标字体？

我正在为菜单制作一个固定块。

.header-fixed {
    position: fixed
    z-index: 1000
    background-color: #ffffff
    top: 0
}

问题：如何以任何屏幕分辨率使块居中？

写了一个卷轴。我想对单击的项目进行额外的元素选择并对其应用样式。提示选择的正确语法。对这条线感兴趣$(this).$("menu.main-mnu > ul > li").addClass("active");

$("a[href^='#']").click(function() {
  var _href = $(this).attr("href");
  $("html, body").animate({
    scrollTop: $(_href).offset().top + "px"
  }, 2000);
  $("menu.main-mnu > ul > li").removeClass("active");
  $(this).$("menu.main-mnu > ul > li").addClass("active");
  return false;
});