javascript之猜数小游戏

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学javascript的第二个小程序也～～～～～～～～～

<!DOCTYPE html><html><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><head><title>lulu's second little programe written by javascript</title><script type="text/javascript">var maxTime;function getRandomNum(){var rand = Math.random();var rand_num = Math.round(100*rand);return rand_num;}function startGame(){var rand_num = getRandomNum();var flag = 0;for(i=0;i<maxTime;i++){var guess_num = prompt("请输入您要猜的数字：");if(guess_num == rand_num){alert("恭喜你，答对了！");flag = 1;break;}else if(guess_num > rand_num){alert("猜大了，请重新猜！");}else{alert("猜小了，请重新猜！");}}if(flag == 0){alert("很遗憾，机会已经用完，请重新开始游戏！");}}function getMaxGuessTime(){maxTime = prompt("请输入最大猜测次数！");if(maxTime%1==0  && maxTime != null){alert("设置成功！");}else{alert("输入不合法！");getMaxGuessTime();}}</script></head><body><input type = "button" onclick = "startGame()" value = "开始游戏"><input type = "button" onclick = "getMaxGuessTime()" value = "设置猜数次数"></body></htmk>

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