S = str(input('请输入十个字符串')) for i in range(len(S)): if 97 <= ord(S[i]) <=122 : print(chr(ord(S[i])-32),end=' ') elif 65 <= ord(S[i]) <= 90: print(chr(ord(S[i])+32),end=' ') else: print(S[i],end=' ')
# 循环输入字符,大写转小写,小写转大写,其它字符不变,然后输出
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转载自blog.csdn.net/lovel_t/article/details/81142725
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