当我创建一个新用户,但它无法登录数据库.
我这样做:
postgres@Aspire:/home/XXX$ createuser dev
Shall the new role be a superuser? (y/n) n
Shall the new role be allowed to create databases? (y/n) y
Shall the new role be allowed to create more new roles? (y/n) y
然后创建一个数据库:
postgres@Aspire:/home/XXX$ createdb -O dev test_development
之后,我尝试psql -U dev -W test_development登录,但得到错误:
psql: FATAL: Peer authentication failed for user "dev"
我试图解决问题但失败了.
我是新手.这是我的代码:
<html>
<head>
<script type="text/javascript">
function replyOne () {
document.getElementById("comment_content").value = document.getElementById("username")
}
</script>
</head>
<body>
<p id="username">Jack</p>
<textarea id="comment_content" ></textarea>
<button onclick="replyOne()">Copy Text</button>
</body>
</html>
我希望当我点击按钮时,它会将'Jack'复制到textarea.但它只是写'[object HTMLParagraphElement]'.