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JS performance reward and punishment examples

2022-06-27 07:35:00 【I am the sun?】

The title is as follows ：
Achievements in [90,100], Reward laptops
Achievements in [75,89], Reward the game for one day
Achievements in [60,74], Reward a set of test questions
Achievements in [0,59], Reward tutoring classes
Wrong input , This shows an error
The code is as follows ：

<!-- Achievements in [90,100], Reward laptops 
 Achievements in [75,89], Reward the game for one day 
 Achievements in [60,74], Reward a set of test questions 
 Achievements in [0,59], Reward tutoring classes 
 Wrong input , This shows an error -->
<!DOCTYPE html>
<html lang="zh">
<head>
	<meta charset="UTF-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
	<meta http-equiv="X-UA-Compatible" content="ie=edge" />
	<title> Achievements determine rewards and punishments </title>
	<script type="text/javascript">
			var grade = prompt(" Please enter your score ：");
			if(grade > 100 || grade < 0 || isNaN(grade)){
				alert(" There is no achievement  "+ grade +" Of , Go away ");
			}else if(grade >= 90){
				alert(" achievement  " + grade +" branch , Reward a laptop ");
			}else if(grade >= 75){
				alert(" achievement  " + grade +" branch , Reward the game for one day ");
			}else if(grade >= 60){
				alert(" achievement  " + grade +" branch , Reward a set of test questions ");
			}else{
				alert(" Achievement talent "+ grade +" branch , Reward tutoring classes ");
			}
		</script>
</head>
<body>
	
</body>
</html>

The operation results are as follows ：
Insert picture description here