主页 / 问题 / 1425354
Accepted
almaz
Asked:2022-08-30 15:40:12 +0000 UTC2022-08-30 15:40:12 +0000 UTC

python如何正确比较工作表值与字典键

  • 772
list_symbols = ["EURUSDrfd", "GBPUSDrfd", "AUDUSDrfd","USDCADrfd"]   
dict_symbols = {"eurusd": 
                   {"price": 1.05},
                "gbpusd": 
                   {"price": 1.22},
                "audusd":
                   {"price": 1.09} }
     

for symbol in list_symbols:
    if symbol in list(dict_symbols.keys()):   # как осушествить проверку в цикле на подобие ??
        print(f"{symbol} find !")
    else:
        print(f"{symbol} not find !")
  • 列表的值与字典的键值不完全匹配，即部分相等。

示例：“EURUSDrfd”=“eurusd”

注意：列表中的数据下次可能会改变：它是“ EURUSDrfd”，它变成了“rfdEURUSD”

python

2 个回答

  1. 如果多余的字符总是相同的，那么您可以简单地通过删除它们replace，好吧，稍后也将它们带入所需的寄存器：

    for symbol in list_symbols:
    symbol = symbol.replace('rfd', '').lower()
    ...

    结论：

    eurusd find !
gbpusd find !
audusd find !
usdcad not find !

    在更复杂的情况下，模糊比较库可能会派上用场

    • 3
  2. Best Answer

    如果你从另一边走，例如这样：

    from re import search

list_symbols = ["EURUSDrfd", "GBPUSDrfd", "AUDUSDrfd", "USDCADrfd", "rfdEURUSD"]   
dict_symbols = {"eurusd": {"price": 1.05},
                "gbpusd": {"price": 1.22},
                "audusd": {"price": 1.09}}

for symbol in list_symbols:
    if search(fr'{"|".join(dict_symbols)}',symbol.lower()):
        print(f'{symbol} found')

'''
EURUSDrfd found
GBPUSDrfd found
AUDUSDrfd found
rfdEURUSD found
    • 2

相关问题