info="label_data"
print("原始字符串:")
print(info)
lower_info=info.lower()
print("小写:",lower_info)
upper_info=info.upper()
print("大写:",upper_info)
print("长度:",len(info))
reverse_info=info[::-1]
print("逆序:",reverse_info)
aW5mbz0ibGFiZWxfZGF0YSIKcHJpbnQoIuWOn+Wni+Wtl+espuS4sjoiKQpwcmludChpbmZvKQpsb3dlcl9pbmZvPWluZm8ubG93ZXIoKQpwcmludCgi5bCP5YaZOiIsbG93ZXJfaW5mbykKdXBwZXJfaW5mbz1pbmZvLnVwcGVyKCkKcHJpbnQoIuWkp+WGmToiLHVwcGVyX2luZm8pCnByaW50KCLplb/luqY6IixsZW4oaW5mbykpCnJldmVyc2VfaW5mbz1pbmZvWzo6LTFdCnByaW50KCLpgIbluo86IixyZXZlcnNlX2luZm8p