lovecoding
/
VIP22


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    var a = 111;
    console.log(a++)//111
    a--;
    console.log(++a);//112
    console.log(--a)//111
  </script>
</body>
</html>