update py/POST-GET.py.

py/POST-GET.py

@@ -17,6 +17,10 @@ def auth_post():
     auth_headers = {
         "Content-Type": "application/json, charset=UTF-8"
     }
+
+#json为dict时，如果不指定content-type，默认为application/json
+#json为str时，如果不指定content-type，默认为application/json
+
     auth_original = requests.request('post', url_auth, json=auth_body, headers=auth_headers)
     access_token_original = auth_original.json()
     access_token = access_token_original['access_token']
@@ -28,6 +32,10 @@ def post_x-www-form():
     init_headers = {'content-type': 'application/x-www-form-urlencoded'}
     init_url = "http://192.1.1.1:8080/init"
     params = {"account_ids":Ids[0]}
+
+#data为dict时，如果不指定content-type，默认为application/x-www-form-urlencoded，相当于普通form表单提交的形式
+#data为str时，如果不指定content-type，默认为text/plain
+
     resp = requests.post(init_url, data=params, headers=init_headers)
     print(resp.text)