function add(){
var p1 = document.getElementById("p1");
p1.className="one";
}
function modify(){
var p2 = document.getElementById("p2");
p2.className="two";
}
var p1 = document.getElementById("p1");
p1.className="one";
}
function modify(){
var p2 = document.getElementById("p2");
p2.className="two";
}
2016-06-12
var mynum;
mynum ="javascript";
mynum=8;
document.write(mynum);
mynum ="javascript";
mynum=8;
document.write(mynum);
2016-06-12
<script type="text/javascript">
function hidetext(){
var mychar=document.getElementById("con");
mychar.style.display="none";
}
function showtext(){
var mychar=document.getElementById("con");
mychar.style.display="block";
}
function hidetext(){
var mychar=document.getElementById("con");
mychar.style.display="none";
}
function showtext(){
var mychar=document.getElementById("con");
mychar.style.display="block";
}
2016-06-12
已采纳回答 / 慕侠9284689
是的，reset()是Javascript的保留函数，reset() 方法可把表单中的元素重置为它们的默认值。具体可以参考W3C的教程：http://www.w3school.com.cn/jsref/met_form_reset.asp
2016-06-12
function hidetext()
{
var mychar = document.getElementById("con");
mychar.style.display="none";
}
function showtext()
{
var mychar = document.getElementById("con");
mychar.style.display="block";
}
{
var mychar = document.getElementById("con");
mychar.style.display="none";
}
function showtext()
{
var mychar = document.getElementById("con");
mychar.style.display="block";
}
2016-06-12
mychar.style.color="red";
mychar.style.backgroundColor="#ccc";
mychar.style.width="300px";
mychar.style.backgroundColor="#ccc";
mychar.style.width="300px";
2016-06-12
<script type="text/javascript">
var mychar=document.getElementById("con"); ;
document.write("原标题:"+mychar.innerHTML+"<br>"); //输出原h2标签内容
mychar.innerHTML="Hello World";
document.write("修改后的标题:"+mychar.innerHTML);
var mychar=document.getElementById("con"); ;
document.write("原标题:"+mychar.innerHTML+"<br>"); //输出原h2标签内容
mychar.innerHTML="Hello World";
document.write("修改后的标题:"+mychar.innerHTML);
2016-06-12
<script type="text/javascript">
var mychar=document.getElementById("con");
document.write("原标题:"+mychar.innerHTML+"<br>"); //输出原h2标签内容
mychar.innerHTML="Hello world!";
document.write("修改后的标题:"+mychar.innerHTML); //输出修改后h2标签内容
</script>
var mychar=document.getElementById("con");
document.write("原标题:"+mychar.innerHTML+"<br>"); //输出原h2标签内容
mychar.innerHTML="Hello world!";
document.write("修改后的标题:"+mychar.innerHTML); //输出修改后h2标签内容
</script>
2016-06-12
<script type="text/javascript">
var mychar=document.getElementById("char");
document.write("原标题:"+mychar.innerHTML+"<br>"); //输出原h2标签内容
mychar.innerHTML="Hello world!";
document.write("修改后的标题:"+mychar.innerHTML); //输出修改后h2标签内容
</script>
var mychar=document.getElementById("char");
document.write("原标题:"+mychar.innerHTML+"<br>"); //输出原h2标签内容
mychar.innerHTML="Hello world!";
document.write("修改后的标题:"+mychar.innerHTML); //输出修改后h2标签内容
</script>
2016-06-12
<script type="text/javascript">
function hidetext()
{
var mychar = document.getElementById("con");
mychar.style.display="none";
}
function showtext()
{
var mychar = document.getElementById("con");
mychar.style.display="block";
}
</script>
function hidetext()
{
var mychar = document.getElementById("con");
mychar.style.display="none";
}
function showtext()
{
var mychar = document.getElementById("con");
mychar.style.display="block";
}
</script>
2016-06-12
