python之socket--粘包补充

struct补充

 

import struct
import json
header_dic={'total_size':123123,
            'filename':None,
            'md5':None}

header_json=json.dumps(header_dic)
header_bytes=header_json.encode('utf-8')
# print(header_bytes,type(header_bytes))
print(len(header_bytes))

struct补充