时间:2021-07-01 10:21:17 帮助过:22人阅读
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <base href="<%=basePath%>"/> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>回调函数</title> <script type="text/javascript" src="js/jquery-1.7.1.min.js"></script> <script type="text/javascript"> //返回值是一个函数格式 function a(callBackFunction){ console.log("这是parsent函数a"); var m=1; var n=3; return callBackFunction(m,n); } function b(m,n){ console.log("这是回调函数b"); return m+n; } $(function(){ var result=a(b); //输出结果是:4 console.log("result="+result); var c=function(){ return 3*4; }; console.log("输出的结果是:"+c()); }); </script> </head> <body> </body> </html>