Ajax get and post

The post and get methods have the following differences: 1. the POST method does not need to be shown in the URL when transmitting data, but the get method must be shown in the URL. 2. the size of post data transmission can reach 2 MB, while the get method can only transmit about 1024 bytes due to the limited URL length. 3. post, as its name implies, is to transfer data to the server segment, and get is to get data from the server segment. the reason why get can also transmit data is to design and tell the server what data you actually need. the post information is used as the content of the HTTP request, while get is transmitted in the HTTP header. Request. querystring ["strname"] request for receiving post. form ["strname"]: although the two submission methods can use request ("strname") to obtain the submitted data ProgramEfficiency is affected and is not recommended. In general, try to avoid using the get method to submit the form, because it may cause security problems.