post 无数据

[zuozhehao]

greq.PostDo("https://httpbin.org/post", {"aa":"b"})

{
  "args": {}, 
  "data": "", 
  "files": {}, 
  "form": {}, 
  "headers": {
    "Accept-Encoding": "gzip", 
    "Content-Length": "0", 
    "Host": "httpbin.org", 
    "User-Agent": "Go-http-client/2.0", 
    "X-Amzn-Trace-Id": "Root=1-69427b32-35cf40643cba66272f1b0c2c"
  }, 
  "json": null, 
  "origin": "", 
  "url": "https://httpbin.org/post"
}