JS综合案例:随机答题的小游戏
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<!doctype html> <html> <head> <meta charset="utf-8"> <title>答题小游戏案例示例</title> </head> <body> <pre> <script type="text/javascript"> var x,y,result,answer,go_on; while(true) {//先出题,再答题 x = Math.floor(Math.random() *90)+10; //随机生成两个二位整数 y = Math.floor(Math.random() *90)+10; result = x+y; //计算标准答案 answer = parseFloat(prompt(x + "+" + y + "=","0")); //接收用户答案 go_on = confirm((answer==result?"答对":"答错")+"!\t继续测试吗?"); if(!go_on) break; //若单击“取消”按钮则返回 false,即结束提问 } </script> </pre> </body> </html>