蜂儿院狗志立 蜂儿院张志立
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11111111 str = input("请输入一句英文：") count_upper = 0 count_lower = 0 count_digit = 0 for s in str: if s.isupper(): count_upper = count_upper + 1 if s.islower(): count_lower = count_lower + 1 if s.isdigit(): count_digit = count_digit + 1 print("大写字符：", count_upper) print("小写字符：", count_lower) print("数字字符：", count_digit)
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