function qing()
{
var form3
form3=window.document.forms[0];
//
;
for(var i=0;i<form3.elements.length;i++){
if(form3.elements[i].type == "text"){
form3.elements[i].value = "";
}
}
}
{
var form3
form3=window.document.forms[0];
//
;
for(var i=0;i<form3.elements.length;i++){
if(form3.elements[i].type == "text"){
form3.elements[i].value = "";
}
}
}
<script language="javascript">
function qing()
{
var form3
form3=window.document.forms[0];
for(var i=0;i<form3.elements.length;i++){
if(form3.elements[i].type == "text" ){
form3.elements[i].value = "";
}
}
}
</script>
</head><body>
<form name="form1" id="form1" action="" method="post">
<input type="text" value="123"><br>
<input type="text" value="123"><br>
<input type="text" value="123"><br>
<input type="text" value="123"><br>
<input type="text" value=""><br>
<br><input type="password" value="123">
<input type="button" value="清空" onClick="qing()">
</form>
<form name="form2" id="form1" action="" method="post">
<input type="password" value="123">
</form>
</body>
form3.elements.value = "";
}有这种写法吗?
function qing()
{var form3;
form3=window.document.forms[0];
for(var i=0;i<form3.elements.length;i++){
if(form3[i].type == "text"){
form3[i].value = "";
}
}
}
</script>