When click "start" button, a div inside every seconds "hello", "hello"-CodePudding

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When click "start" button, a div inside every seconds "hello", "hello"

Time：09-19

 
 
 
 
<meta charset="utf-8"/& gt; 
  
 
<body> 
The function onclick () {
SetInterval (function () {
Document. The write (" hello "); 
}, 1000); 
} 

</script>

could you please tell me why I did not respond to a button to press? How to correct?

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