55 lines
1.5 KiB
PHP
55 lines
1.5 KiB
PHP
<?php
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session_start();
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if (isset($_SESSION['role'])) {
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echo '<script>alert("你已经登录，不需要再次登录");location.href="11.test2.default.php";</script>';
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}
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?>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>用户登录</title>
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</head>
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<body>
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<form action="11.test2.default.php" method="post" id="login_form1">
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<table>
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<tr>
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<td>
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<label for="username1">用户名</label>
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</td>
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<td>
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<input type="text" name="username" id="username1" required>
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</td>
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</tr>
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<tr>
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<td>
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<label for="password1">密码</label>
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</td>
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<td>
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<input type="password" name="password" id="password1" required>
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</td>
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</tr>
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<tr>
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<td colspan="2" style="text-align: center">
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<input type="submit" name="submit" id="submit1" value="登录" oninput="return check(form)">
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<input type="reset" name="reset" id="reset1" value="重置">
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</td>
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</tr>
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</table>
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</form>
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<script>
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function check(login) {
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if (login.username.value === "") {
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alert("用户名不能为空");
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form.username.focus();
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return false;
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}
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if (login.password.value === "") {
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alert("密码不能为空");
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form.paasword.focus();
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return false;
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}
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form.submit();
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}
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</script>
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</body>
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