Python与C++结构体交互

# 包体, data是要发送的json数据
def body_100(data):
string1 = ''
string2 = len(data)
string3 = data

string1 = struct.pack('33s', string1)
string2 = struct.pack('i', string2)
string3 = struct.pack('%ds' % datalen_num, string3)
request_body = string1+string2+string3
return request_body, len(request_body)