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  • if_test.py

    strings=['xxaa','xuo','fwefxxx','woeuxxfei']
    print(strings)
    #替换方法1
    for string in strings:
        if 'xx' in string:
            index=strings.index(string)
            strings[index]='00'
    print(strings)
    strings=['xxaa','xuo','fwefxxx','woeuxxfei']
    for index,string in enumerate(strings):
        if 'xx' in string:
            strings[index]=strings[index].replace('xx','00')
    print(strings)
    print("over")
    
    
    for x in range(1,5):
        print (x)
        if x == 3: break
    else:
        print("in")#只有当break不被调用时执行
    
    a=3
    if a==1:
        print('a')
    elif a==2:
        print('b')
    else:
        print('else')
    
        
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  • 原文地址:https://www.cnblogs.com/feifeidxl/p/5617881.html
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