求解答~
这个为什么href后面的等号没有变色？是什么问题啊？求指教~新手
回复讨论(解决方案)
为什么要变色？echo里面只是字符串
这个为什么href后面的等号没有变色？是什么问题啊？求指教~新手 你这样写是正确的啊。
echo "<script>alert('登陆成功');window.location.href='index.php' ;</script>";
echo "<script>alert('登陆失败');window.location.href='login.php' ;</script>";
这个分号在里面的吧。
引用 楼主 u010201059 的回复:这个为什么href后面的等号没有变色？是什么问题啊？求指教~新手你这样写是正确的啊。
那为什么不管我输入的用户名与密码是否正确它都跳转到空白页呢？
这个是检查用户名和密码的程序，帮忙看看哪里出错了啊？
那个空白页？你的文件不存在？404了？
是不是$_POST[""]没有吧，把你登陆界面的代码发出来看下
引用 2 楼 u010209443 的回复:引用 楼主 u010201059 的回复:这个为什么href后面的等号没有变色？是什么问题啊？求指教~新手你这样写是正确的啊。
那为什么不管我输入的用户名与密码是否正确它都跳转到空白页呢？
这个是检查用户名和密码的程序，帮忙看看哪里出错了啊？ 首先你判断的是表单的输入框是否存在，这样的话只要你输入东西就会跳到index.php页面；第二，你应该判断$_POST['username']，就是输入的用户名是否在数据库中存在，你可以先遍历出数据库中的用户名，然后判断$_POST['username']是存在于其中；第三，你的index.php存在吗？或者是你的路径写错了。
是不是$_POST[""]没有吧，把你登陆界面的代码发出来看下
我把那个判断表单是否上传那一句if（isset。。。删掉了又试了试（因为我想着登陆界面直接作用到判断文件，所以这个判断语句应该可以不要的吧），用了正确的用户名和密码但是登录失败。。。
引用 4 楼 u010201059 的回复:引用 2 楼 u010209443 的回复:引用 楼主 u010201059 的回复:这个为什么href后面的等号没有变色？是什么问题啊？求指教~新手你这样写是正确的啊。
那为什么不管我输入的用户名与密码是否正确它都跳转到空白页呢？
这个是检查用户名和密码的程序，帮忙看看哪里出错了啊？首先你判断的是表单的输入框是否存在，这样……[/没有吧，我哪句是判断表单输入框的存在？没有这句吧，index.php文件是对的
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