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