msg = "hello 123 WORLD"
#输出字符串的总长度,并输出其中小写字母的个数
length = len(msg)
print("字符串的总长度:",length)
low = sum(1 for ch in msg if ch.islower())
print("小写字母的个数:",low)
bXNnID0gImhlbGxvIDEyMyBXT1JMRCIKI+i+k+WHuuWtl+espuS4sueahOaAu+mVv+W6pu+8jOW5tui+k+WHuuWFtuS4reWwj+WGmeWtl+avjeeahOS4quaVsApsZW5ndGggPSBsZW4obXNnKQpwcmludCgi5a2X56ym5Liy55qE5oC76ZW/5bqm77yaIixsZW5ndGgpCgpsb3cgPSBzdW0oMSBmb3IgY2ggaW4gbXNnIGlmIGNoLmlzbG93ZXIoKSkKcHJpbnQoIuWwj+WGmeWtl+avjeeahOS4quaVsO+8miIsbG93KQ==