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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0">
- <title>Document</title>
- </head>
- <body>
- <script>
- function randomNum(){
- var a = Math.random();
- // 随机数最小值 0.000000000000001
- // 随机数最大值 0.999999999999999
- a = a * 9 +1;
- return Math.floor(a)
- }
- var win = 0;
- function play(){
- var a = randomNum();
- var b = randomNum();
- var c = randomNum();
- console.log(a,b,c);
- if(a == 8 || b == 8 || c == 8){
- win++;
- }
- }
- for(var i=0;i<10;i++){
- play();
- }
- console.log(win/10*100+"%")
- </script>
- </body>
- </html>
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