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uesowys
计算机科技研究员
4 年前
trueuesowys

Table-level lock whose granularity is bigger than the granularity of row-level lock.It can hold the total table in hand.
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用户名密码登录 <style> .box4{width: 400px; height: 400px; margin-top:150px ; margin-left:500px; /* margin-right:150px; */ border-color: black;} </style> <script> function myFunction() { alert("保存成功！请登录");} </script> </head> <body> <div class="box4" type = "center" > <style type = text/css> body{background-image:url(img/bg.png);} </style> <form method="get" action="###" name="myform" onsubmit="checkpost()"> <label for="name">用户名:   </label><input type = "text" name = "name" id="name"/><br> <br> <br> <label for="pw">密   码:   </label><input type = "password" name = "pw" id="pw"/><br> <br> <input type = "submit" value = "登录"/>        <button onclick="myFunction()">保存</button> </div> </form> <script> function checkpost(){ if(document.forms[0].name.value=="用户名"&&document.forms[0].pw.value=="密码"){ action="跳转地址"; }else{alert("用户名或密码不正确！") return false;}} </script> </div>