python判断字符串中大小写字母及数字个数
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low_char_count = 0
up_char_count = 0
num_count = 0
for ss in s:
if 'a' <= ss <= 'z':
low_char_count += 1
elif 'A' <= ss <= 'Z':
up_char_count += 1
elif '0' <= ss <= '9':
num_count += 1
up_char_count = 0
num_count = 0
for ss in s:
if 'a' <= ss <= 'z':
low_char_count += 1
elif 'A' <= ss <= 'Z':
up_char_count += 1
elif '0' <= ss <= '9':
num_count += 1
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