地址：http://d.web2.qq.com/channel/send_qun_msg2
方式：POST
參数：
r = {"group_uin":2393471267,"content":"["33333",["font",{"name":"\u5b8b\u4f53","size":"10","style":[0,0,0],"color":"993366"}]]","msg_id":23500004,"clientid":"11350546","psessionid":"8368046764001e636f6e6e7365727665725f77656271714031302e3132382e36362e31313500003c8a000019a8026e04004548cb3c6d0000000a406542387165794b4b4b6d0000002877c759bb8a633ff2f63f51cca8d7accadc13599f5852f1ec0952495dacac5fb51a4c01d937aeac41"}
clientid = 11350546
psessionid = 8368046764001e636f6e6e7365727665725f77656271714031302e3132382e36362e31313500003c8a000019a8026e04004548cb3c6d0000000a406542387165794b4b4b6d0000002877c759bb8a633ff2f63f51cca8d7accadc13599f5852f1ec0952495dacac5fb51a4c01d937aeac41
成功返回：
{"retcode":0,"result":"ok"}