```markdown @author jackzhenguo @desc @date 2019/5/3 ``` #### 88 字符串字节长度 ```python def str_byte_len(mystr): return (len(mystr.encode('utf-8'))) ``` 测试： ```python str_byte_len('i love python') # 13(个字节) str_byte_len('字符') # 6(个字节) ```