JavaScript calls background methods

In javascript, you can use "<%=%>" to call the background, and the syntax is "<%=method>". Javascript calls a server-side exe or a function in a dll, or even a Linux binary executable file, runs it on the server, and returns the result to js after running.

The operating environment of this tutorial: Windows 7 system, JavaScript version 1.8.5, Dell G3 computer.

javascript calls the background method

##Directly use <%=%>call

Front-end JS:

<script type="text/javascript">  
       var methodStr = "<%=BehindMethod() %>";  
       alert(methodStr);  
       </script>

Backend method:

public static string BehindMethod()
        {
            return "这是一个后台的方法";
        }

1)

BehindMethod()publicAccess modification before the method Don’t forget the symbol;

2) This method has limitations - BehindMethod() will only be automatically called when the

ASPX page is loaded or posted back, and the call cannot be controlled manually.

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