<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>
2015-12-07
<script type="text/javascript">
var mychar= document.getElementById("con");
mychar.style.color = "red";
mychar.style.backgroundColor = "#ccc";
mychar.style.width = "200px";
</script>
var mychar= document.getElementById("con");
mychar.style.color = "red";
mychar.style.backgroundColor = "#ccc";
mychar.style.width = "200px";
</script>
2015-12-07
<script type="text/javascript">
var mychar= document.getElementById("con");
mychar.style.color = "red";
mychar.style.background = "#ccc";
mychar.style.width = "200px";
</script>
var mychar= document.getElementById("con");
mychar.style.color = "red";
mychar.style.background = "#ccc";
mychar.style.width = "200px";
</script>
2015-12-07
<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>
2015-12-07
已采纳回答 / 木子舟义
为什么不规范呢 因为少一个 分号？ javascript中每行的末尾需要分号的地方如果没有 会自动添加分号。不要也没关系，不过严谨来说还是加上好，在以后如果要加载很多javascript文件，如果没有分号可能会导致错误。
2015-12-06
//定义"取消设置"的函数
function reSet(){
var re=document.getElementById("txt");
var res=confirm("你确实能够要取消设置吗?");
if(res==true){
re.style.color="#000";
re.style.backgroundColor="#fff";
re.style.height="400px";
re.style.width="600px";
}
}
function reSet(){
var re=document.getElementById("txt");
var res=confirm("你确实能够要取消设置吗?");
if(res==true){
re.style.color="#000";
re.style.backgroundColor="#fff";
re.style.height="400px";
re.style.width="600px";
}
}
<input type="button" value="改变颜色" onClick="changeColor()">
<input type="button" value="改变宽高" onClick="changeH()">
<input type="button" value="隐藏内容" onClick="non()">
<input type="button" value="显示内容" onClick="dis()">
<input type="button" value="取消设置" onClick="reSet()">
</form>
<input type="button" value="改变宽高" onClick="changeH()">
<input type="button" value="隐藏内容" onClick="non()">
<input type="button" value="显示内容" onClick="dis()">
<input type="button" value="取消设置" onClick="reSet()">
</form>
代码没问题，窗口试过了就是不行
function openWindow(){
var mywin=confirm("请问是否要打开新的窗口？");
if(mywin==true)
{
var mp=prompt("输入将要打开的网址","http://www.imooc.com/");
if(mp!=null){
window.open(mp,'_blank','toolbar=no,menubar=no','width=400px,height=500px');
}
}
}
function openWindow(){
var mywin=confirm("请问是否要打开新的窗口？");
if(mywin==true)
{
var mp=prompt("输入将要打开的网址","http://www.imooc.com/");
if(mp!=null){
window.open(mp,'_blank','toolbar=no,menubar=no','width=400px,height=500px');
}
}
}
function openWindow(){
var mywin=confirm("请问是否要打开新的窗口？");
if(mywin==true)
{
var mp=prompt("输入将要打开的网址","http://www.imooc.com/");
if(mp!==null){
window.open(mp,'_blank','toolbar=no,menubar=no','width=400px,height=500px');
}
}
}
var mywin=confirm("请问是否要打开新的窗口？");
if(mywin==true)
{
var mp=prompt("输入将要打开的网址","http://www.imooc.com/");
if(mp!==null){
window.open(mp,'_blank','toolbar=no,menubar=no','width=400px,height=500px');
}
}
}