为了账号安全，请及时绑定邮箱和手机立即绑定

课程

/后端开发

/PHP

/PHP入门篇

这里每次产生的随机数都是一样的，那怎么加入代码才能在不刷新页面只执行代码的前提下获取新的随机数呢？

<?php

$num = rand(1,50);//获取1至50的随机数

$info = "";//提示信息

switch($num){

    case 1:

$info = "恭喜你！中了一等奖！";

break;

case 2:

$info = "恭喜你！中了二等奖！";

break;

  case 3:

$info = "恭喜你！中了三等奖！";

break;

default:

$info = "很遗憾！你没有中奖！";

}

 echo $num;

 echo "<br />";

 echo $info; //输出是否中奖

?>


宝慕林9313797

2017-07-27

源自：PHP入门篇  6-5

关注问题 我要回答
1639
操作
收起

正在回答

3 回答

慕莱坞5242466
2022-04-12

赞！做的很好，继续努力，加油！

tfmhmj

0 回复 有任何疑惑可以回复我~
收起回答
qq_慕神1420022
2022-03-31

是啊,语法上^_^

http://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%32%25%43%36%25%43%39%25%46%31%25%42%39%25%46%41%25%42%43%25%43%41%25%42%46%25%43%39%25%42%46%25%42%46%25%43%32%25%46%30%25%44%36%25%42%31%25%44%33%25%41%41%25%43%44%25%46%38%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%43%37%25%45%43%25%44%31%25%46%34%25%42%35%25%45%37%25%44%30%25%43%35_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%43%45%25%44%32%25%44%34%25%44%41%25%42%31%25%42%31%25%42%45%25%41%39%25%43%44%25%41%36%25%42%41%25%43%33%25%44%36%25%42%31%25%44%33%25%41%41%25%42%46%25%41%41%25%42%42%25%41%37%25%33%41%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%43%43%25%45%43%25%43%42%25%41%45%25%43%38%25%43%42%25%42%32%25%43%35_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%44%39%25%42%43%25%44%32%25%43%30%25%44%36%25%43%35%25%43%36%25%42%43%25%42%43%25%43%37%25%43%39%25%42%39%25%44%39%25%42%37%25%42%44%25%43%44%25%46%38%25%44%36%25%42%37%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%42%31%25%42%31%25%42%41%25%41%33%25%42%44%25%42%42%25%43%44%25%41%38_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%44%39%25%42%43%25%44%32%25%43%30%25%44%36%25%42%39%25%41%42%25%43%41%25%42%44%25%42%37%25%45%42%25%42%38%25%46%42%25%41%31%25%42%45%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%25%42%42%25%42%36%25%44%33%25%41%44%25%43%34%25%46%41%25%41%31%25%42%46%252C%25%42%42%25%42%33%25%42%42%25%41%46%25%42%31%25%43%46%25%44%32%25%42%35%25%43%39%25%46%41_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%44%30%25%41%31%25%44%42%25%43%32%25%43%30%25%41%44%25%44%32%25%46%38%25%42%41%25%44%33%25%42%39%25%46%41%25%41%31%25%42%45%25%42%39%25%44%39%25%43%44%25%46%38%25%41%31%25%46%41%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%25%41%31%25%42%46%252C%25%43%32%25%45%35%25%44%31%25%46%34%25%43%39%25%45%37%25%42%31%25%41%33_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%44%39%25%42%43%25%44%32%25%43%30%25%44%36%25%42%34%25%46%32%25%44%37%25%41%46%25%42%32%25%44%46%25%43%32%25%44%34%25%44%36%25%42%31%25%44%33%25%41%41%25%43%44%25%46%38%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%44%32%25%43%42%25%42%31%25%46%36%25%42%44%25%42%42%25%43%44%25%41%38_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%44%34%25%44%41%25%43%46%25%44%46%25%42%30%25%44%39%25%42%43%25%44%32%25%43%30%25%44%36%25%42%44%25%44%32%25%44%36%25%42%31%25%44%33%25%41%41%25%43%44%25%46%38%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%43%37%25%45%30%25%42%35%25%42%41%25%42%39%25%45%33%25%42%32%25%41%35_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%43%34%25%43%33%25%43%35%25%42%39%25%46%41%25%42%43%25%43%41%25%44%33%25%45%39%25%43%30%25%44%36%25%42%46%25%41%41%25%42%42%25%41%37%25%42%39%25%44%39%25%43%44%25%46%38%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%41%31%25%41%34%25%34%33%25%34%46%25%34%44%252C%25%42%45%25%41%33%25%44%36%25%44%44%25%43%45%25%43%30%25%43%39%25%46%41%25%42%45%25%44%36_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%43%33%25%45%35%25%42%35%25%45%39%25%44%30%25%43%32%25%42%44%25%46%30%25%42%31%25%41%36%25%43%44%25%46%38%25%44%36%25%42%37%25%43%44%25%46%38%25%44%36%25%42%37%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%32%45%25%41%33%25%43%33%25%41%33%25%43%46%25%41%33%25%43%44%252C%25%43%46%25%43%43%25%44%31%25%46%34%25%44%32%25%44%46%25%43%37%25%45%39_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%44%39%25%42%43%25%44%32%25%43%30%25%44%36%25%43%32%25%44%36%25%43%35%25%43%43%25%44%34%25%46%35%25%43%33%25%42%34%25%41%31%25%42%45%25%42%39%25%44%39%25%43%44%25%46%38%25%41%31%25%46%41%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%25%41%31%25%42%46%252C%25%43%30%25%41%44%25%43%38%25%46%38%25%42%37%25%44%36%25%42%39%25%41%42%25%43%42%25%42%45_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%44%39%25%42%43%25%44%32%25%43%30%25%44%36%25%44%33%25%41%45%25%43%37%25%41%45%25%43%33%25%44%38%25%42%39%25%44%39%25%42%37%25%42%44%25%43%44%25%46%38%25%44%36%25%42%37%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%43%32%25%41%34%25%43%34%25%43%46%25%44%32%25%44%46%25%43%37%25%45%39_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%44%37%25%41%46%25%42%41%25%43%44%25%43%46%25%44%30%25%42%35%25%41%35%25%42%42%25%46%41%25%43%46%25%43%32%25%44%34%25%44%38%25%42%46%25%41%41%25%42%42%25%41%37%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%32%45%25%36%33%25%41%33%25%43%46%25%41%33%25%43%44%252C%25%42%31%25%41%33%25%42%36%25%41%38%25%42%37%25%44%36%25%42%39%25%41%42%25%43%42%25%42%45_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%36%25%43%34%25%42%33%25%41%31%25%43%33%25%46%42%25%44%37%25%44%36%25%42%34%25%46%33%25%43%38%25%41%42%25%42%46%25%41%41%25%42%42%25%41%37%25%42%39%25%44%39%25%43%44%25%46%38%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%41%31%25%41%34%25%34%33%25%34%46%25%34%44%252C%25%42%31%25%41%33%25%42%36%25%41%38%25%42%37%25%43%30%25%44%32%25%44%46_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%44%37%25%43%41%25%44%31%25%42%36%25%43%44%25%46%38%25%43%43%25%41%42%25%44%31%25%46%34%25%42%33%25%43%37%25%43%44%25%46%38%25%44%36%25%42%37%25%35%38%25%35%33%25%33%36%25%33%38%25%33%36%25%32%45%25%41%33%25%43%33%25%41%33%25%43%46%25%41%33%25%43%44%252C%25%42%43%25%41%36%25%43%45%25%46%37%25%43%38%25%43%42%25%42%32%25%43%35_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%42%30%25%44%39%25%42%43%25%44%32%25%43%30%25%44%36%25%43%44%25%46%38%25%43%39%25%43%46%25%43%46%25%43%32%25%42%39%25%44%39%25%42%37%25%42%44%25%43%44%25%46%38%25%44%36%25%42%37%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%42%30%25%44%37%25%43%39%25%42%44%25%44%32%25%42%44%25%42%31%25%41%33_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%43%33%25%45%35%25%42%35%25%45%39%25%43%45%25%41%43%25%42%43%25%44%33%25%43%42%25%42%39%25%42%43%25%44%39%25%41%31%25%42%45%25%42%39%25%44%39%25%43%44%25%46%38%25%41%31%25%46%41%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%25%41%31%25%42%46%252C%25%42%33%25%43%39%25%42%36%25%42%43%25%43%36%25%46%33%25%44%32%25%42%35_1s.htmhttp://house.china.com.cn/sousou/%25101%253D%252C%2520%25%44%30%25%43%32%25%43%36%25%43%46%25%42%45%25%41%39%25%44%37%25%41%32%25%42%32%25%45%31%25%43%42%25%43%44%25%43%46%25%44%36%25%42%39%25%44%39%25%42%37%25%42%44%25%43%44%25%46%38%25%44%36%25%42%37%25%34%32%25%33%32%25%33%30%25%33%32%25%33%34%25%32%45%25%34%33%25%34%45%252C%25%44%35%25%42%46%25%42%44%25%41%44%25%43%44%25%46%38%25%42%41%25%45%43_1s.htmhttp://www.minitu.cn/?s=%E6%9E%9C%E6%95%A2%E8%85%BE%E9%BE%99%E5%9B%BD%E9%99%85%E7%94%B5%E8%AF%9D%E5%B9%B3%E5%8F%B0%E4%B8%8B%E8%BD%BD%E9%93%BE%E6%8E%A5%E3%80%90B2024%C2%B7CN%E3%80%91%E4%BA%91%E6%B5%AE%E6%8B%9B%E8%81%98%EF%BC%AC%EF%BD%95%EF%BC%A5https://iias.tsinghua.edu.cn/search/%E7%9A%87%E5%AE%B6%E5%9B%BD%E9%99%85%E7%BD%91%E5%9D%80%E7%BB%99%E6%88%91%E7%BD%91%E5%9D%80B2024%C2%B7CN%E6%9D%A5%E5%AE%BE%E4%BA%BA%E6%89%8D/feed/rss2/http://house.china.com.cn/sousou/%25101%253D%252C%2520%25C3%25E5%25B5%25E9%25F6%25CE%25B0%25DB%25C0%25FB%25B5%25C4%25B5%25E7%25BB%25B0%25B9%25D9%25CD%25F8B2024.CN%252C%25B1%25B1%25BA%25A3%25C8%25CB%25B2%25C5%25CD%25F8%25A3%25AF_1s.htmhttps://mod.3dmgame.com/mods?mods_title=%E7%8E%AF%E7%90%83%E5%A8%B1%E4%B9%90%E8%87%AA%E5%8A%A9%E4%B8%8A%E5%88%86%E5%BE%AE%E4%BF%A1%E7%BD%91%E5%9D%80%E5%9C%A8%E7%BA%BF%E5%AE%A2%E6%9C%8D%E7%9B%B4%E8%90%A5%E5%BC%80%E6%88%B7%3AB2024.CN%E6%B2%B3%E6%B1%A0%E5%88%86%E7%AB%99%EF%BC%AA%EF%BF%A5https://www.oschina.net/search?scope=all&q=%E7%BC%85%E7%94%B8%E5%8D%8E%E7%BA%B3%E5%9B%BD%E9%99%85%E6%89%8B%E6%9C%BA%E6%80%8E%E4%B9%88%E7%8E%A9%E7%BD%91%E5%9D%80B2024.%EF%BC%A3N%E8%B5%A3%E5%B7%9E%E7%94%B5%E4%BF%A1%EF%BC%B2http://biz.finance.sina.com.cn/zjzt/more.php?lytype=ipoly_hyxdly&title=%F6%CE%B0%D9%C0%FB-%B5%BD%D2%D7%C2%A1%D3%E9%C0%D6%BF%AA%BB%A7%B9%D9%CD%F8TL262%A1%A4C%A3%CFM%CB%D5%D6%DD%CD%F8%BA%EChttps://www.oschina.net/search?scope=all&q=%E6%96%B0%E7%99%BE%E5%88%A9%E7%BA%BF%E4%B8%8A%E5%9B%BD%E9%99%85%E6%88%90%E7%9B%B4%E8%90%A5%E5%BC%80%E6%88%B7%3ATL262%C2%B7%EF%BC%A3%EF%BC%AF%EF%BC%AD%E6%9C%9D%E9%98%B3%E5%AD%A6%E5%BA%9Chttps://b2b.baidu.com/s?q=%E8%85%BE%E9%BE%99%E5%9B%BD%E9%99%85%E5%B9%B3%E5%8F%B0%E5%90%88%E4%BD%9C%E7%94%B5%E8%AF%9D%E5%AE%98%E6%96%B9%E7%BD%91%E5%9D%80B2024.CN%E8%82%87%E5%BA%86%E7%84%A6%E7%82%B9&from=searchhttp://dblab.xmu.edu.cn/?s=%E6%B9%96%E5%8D%97%E6%AD%A6%E5%86%88%E7%BD%91%E4%B8%8A%E9%BE%99%E8%99%8E%E3%80%90B2024%C2%B7CN%E3%80%91%E8%BE%BD%E9%98%B3%E4%BD%93%E8%82%B2http://www.minitu.cn/?s=%E6%B2%B3%E5%8C%97%E4%B8%89%E6%B2%B3%E5%93%AA%E9%87%8C%E8%83%BD%E7%8E%A9%E5%BA%84%E5%92%8C%E9%97%B2%E5%BC%80%E6%88%B7TL262.c%EF%BC%AF%EF%BC%AD%E6%89%AC%E5%B7%9E%E7%BE%8E%E9%A3%9Fhttps://db.auto.sina.com.cn/search/?search_txt=%E6%9E%9C%E6%95%A2%E9%91%AB%E4%BD%B0%E5%88%A9%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8%E7%BD%91%E5%9D%80B2024.%EF%BC%A3N%E9%82%B5%E9%98%B3%E8%AE%BF%E8%B0%88http://iias.tsinghua.edu.cn/search/%E7%BC%85%E7%94%B8%E8%80%81%E7%99%BE%E8%83%9C%E6%B4%BB%E5%8A%A8%E3%80%90TL262%C2%B7%EF%BC%A3%EF%BC%AF%EF%BC%AD%E6%AC%A2%E8%BF%8E%E6%82%A8%E3%80%91%E4%B8%8A%E9%A5%B6%E7%94%B5%E4%BF%A1https://wap.zol.com.cn/index.php?c=List_List&keyword=%E7%BC%85%E7%94%B8%E7%9A%87%E5%AE%B6%E5%88%A9%E5%8D%8E%E5%A8%B1%E4%B9%90%E7%94%B5%E8%AF%9D%E5%AE%98%E6%96%B9%E7%BD%91%E5%9D%80TL262%C2%B7%EF%BC%A3%EF%BC%AF%EF%BC%AD%E6%B3%B0%E5%B7%9E%E8%81%94%E9%80%9A%EF%BC%BE%EF%BD%85%EF%BD%9D

0 回复 有任何疑惑可以回复我~
收起回答

举报

0/150
提交
取消
PHP入门篇
  • 参与学习       455587    人
  • 解答问题       6303    个

PHP入门教程轻松学习，行业大牛帮您快速掌握PHP编程基础知识。

进入课程

本课相似问答

2 回答While()判断不可能每次都随机为6吧

3 回答为什么我的运行看不到随机数？

1 回答万一第n次以后数值为98，但下一次的随机数就是10，那会不会撑死呀？

2 回答为什么随机数rand（0，50）永远都是24

2 回答一直随机到6会怎么样？
搜索更多本课相关问答

这里每次产生的随机数都是一样的，那怎么加入代码才能在不刷新页面只执行代码的前提下获取新的随机数呢？

我要回答 关注问题
意见反馈 帮助中心 APP下载
官方微信