Summary of common methods for automatic execution of javascript functions_javascript skills

Three common methods for automatically executing JS functions on web pages

In the Head area in HTML, there are the following functions:

<SCRIPT  LANGUAGE="JavaScript"> 
　　functionn MyAutoRun()
　　{ 
　　　//以下是您的函数的代码，请自行修改先！
　　　alert("函数自动执行哦！"); 
　　} 
</SCRIPT>

Next, we will focus on the above function and let it run automatically when the web page is loaded!

　①The first method

Change the above code to:

<SCRIPT  LANGUAGE="JavaScript"> 
　　functionn MyAutoRun()
　　{ 
　　　//以下是您的函数的代码，请自行修改先！
　　　alert("函数自动执行哦！"); 
　　} 
　　window.onload=MyAutoRun(); //仅需要加这一句
</SCRIPT>

　②Second method

Modify the Body of the webpage to:

　

Or change to:

　

　③The third method

Use JS timer to execute functions intermittently:

setTimeout("MyAutoRun()",1000); //Execute the MyAutoRun() function every 1000 milliseconds

Implementation method, change the top JS function to:

<SCRIPT  LANGUAGE="JavaScript"> 
　　functionn MyAutoRun()
　　{ 
　　　//以下是您的函数的代码，请自行修改先！
　　　alert("函数自动执行哦！"); 
　　} 
　　setTimeout("MyAutoRun()",1000); //这样就行拉
</SCRIPT>

Other methods are more special, not commonly used, and not very versatile, so I won’t introduce them!