JS猜数字游戏实例讲解

<script type="text/javascript">

 // 猜数字案例
 function guessTip(min, max) {
 min = Math.ceil(min);
 max = Math.floor(max);
 return Math.floor(Math.random() * (max - min + 1)) + min; //含最大值，含最小值 
 }

 var guessInput = '';
 var answer = guessTip(1,50); 
 console.log('答案是：' + answer);
 var i = 0 ;
 do{
 guessInput = prompt('1-50，请猜一下是哪个数字');
 guessInput = guessInput * 1 ;
 if(guessInput > answer){
 alert('您猜的数字比答案要大，请继续猜');
 }else if (guessInput < answer){
 alert('您猜的数字比答案要小，请继续猜');
 } 
 i++;
 console.log('i当前是：'+ i);
 console.log(guessInput);
 }while( guessInput != answer && i < 10);
 if (i == 10){
 alert('已达到猜题次数上限，不能继续猜拉！'); 
 }else if( guessInput == answer){
 alert('猜对了！请我吃鸡翅！');
 }

</script>