Created
March 31, 2017 08:26
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js practise
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| <html> | |
| <body onload="guess_game();"> | |
| <script> | |
| var count = 0; | |
| function guess_game() { | |
| var colors = ['black', 'red','maroom', 'yellow','olive','lime','green']; | |
| colors.sort() | |
| var should_choose = Math.floor(Math.random() * colors.length); | |
| var answer = ''; | |
| while (true) { | |
| count++; | |
| answer = prompt('在这几种颜色中选择一个颜色: ' + colors.join(',')); | |
| index = colors.indexOf(answer); | |
| if (index == -1) { | |
| alert('你选择的颜色不在选项内'); | |
| } else if (index == should_choose) { | |
| alert('恭喜你，猜对了!一共用了' + count + '次'); | |
| document.body.style.background = colors[should_choose]; | |
| break; | |
| } else if (index < should_choose) { | |
| alert('猜错了，答案比你填的要大'); | |
| } else { | |
| alert('猜错了, 答案比你填的要小'); | |
| } | |
| } | |
| } | |
| </script> | |
| </body> | |
| </html> |
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