📄 11-12.htm
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
<script language="javascript">
function check(f){
var i;
if(f.listbox.multiple){
for(j=0;j<f.listbox.lenght;i++){
if(f.listbox.options[j].selected){
i=j;
break;
}
}
}else{
i=f.listbox.selectedIndex;
}
f.text1.value = f.listbox.options[i].value;
var str = f.listbox.name+"\n";
str += f.listbox.type+"\n";
str += f.listbox.length+"\n";
str += f.listbox.selectedIndex+"\n";
str += f.listbox.options[i].text+"\n";
str += f.listbox.multiple;
f.text2.value=str;
}
</script>
</head>
<body>
<form name="form">
<select name="listbox" size="4" onChange="check(this.form)">
<option name="choice1" value="家保育，林带于">红楼梦</option>
<option name="choice2" value="孙悟空，猪八戒">西游记</option>
<option name="choice3" value="六被，关于">三国演义</option>
<option name="choice4" value="松江，李逵">水浒转</option>
</select>
<p>
<input type="text" name="text1"><br>
<textarea name="text2" rows="5" cols="20">
</textarea><br>
改变是否可以多选<input type="checkbox" name="checkbox" onchange="javascript:window.document.form.listbox.multiple= !window.document.form.listbox.multiple">
</form>
</body>
</html>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -