How to implement time countdown in Javascript example?

javascriptRealize the countdown effect

In WINFORM, the time control is generally used to complete the timing operation. The timing operation in the web page can use javascript

, Today I wrote a countdown example with JS. This example shows the homepage of 5, 4, 3, 2, and 1 on the page.

Front page:

        
将在 5 秒钟后返回首页！

The javascript code is as follows:

  
    
    
    
  

  
    停止
    
    

   

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