关于python2.7的md5加密遇到的问题（TypeError: Unicode-objects must be encoded before hashing)

https://blog.csdn.net/u012087740/article/details/48439559

import hashlib
import sys  

def md5s():
    m=hashlib.md5()
    strs=sys.argv[1]
    m.update(strs.encode("utf8"))
    print(m.hexdigest())  

if __name__=='__main__':  

    md5s()  

注意update()必须指定要加密的字符串的字符编码