已采纳回答 / 凉宫落寒
<...code...>
function rec(){
var mymessage=confirm("欢迎来到慕课网");
if(mymessage==true)
{
window.open('http://www.imooc.com','_blank','height=600,width=400');
}
}
var mymessage=confirm("欢迎来到慕课网");
if(mymessage==true)
{
window.open('http://www.imooc.com','_blank','height=600,width=400');
}
}
2015-01-20
最新回答 / 灿白
我做了个实验：因为是mac，没有装windows。所以分别在safri、chrome、opera、firefox均没有出现无法读取的现象。所以我更倾向于是书写规范。现在主流浏览器应该不存在兼容性的问题还有一点就是document.write(Math.random());document.write((Math.random())*10);下面一个打了括号，防止被理解称为random()*10，更多是一种书写规范。让浏览器更好识别，当然也不排除有少量的浏览器会有问题。
2015-01-20
document.write("浏览器代码串："+code);
document.write("浏览器名称是："+name);
document.write("浏览器版本号："+version);
document.write("本计算机系统："+platform);
document.write("浏览器头信息："+user);
document.write("浏览器名称是："+name);
document.write("浏览器版本号："+version);
document.write("本计算机系统："+platform);
document.write("浏览器头信息："+user);
2015-01-20
var code = navigator.appCodeName;
var name = navigator.appName;
var version =navigator.appVersion;
var platform =navigator.platform;
var user = navigator.userAgent;
var name = navigator.appName;
var version =navigator.appVersion;
var platform =navigator.platform;
var user = navigator.userAgent;
2015-01-20
form:
<input type="text" id="count" />
<input type="button" value="Start" onclick='startCount()' />
<input type="button" value="Stop" onclick='stopCount()' />
<input type="text" id="count" />
<input type="button" value="Start" onclick='startCount()' />
<input type="button" value="Stop" onclick='stopCount()' />
2015-01-20
js:
var num=0;
var i;
function startCount(){
document.getElementById('count').value=num;
num=num+1;
i=setTimeout("startCount()",1000);
}
function stopCount(){
clearTimeout(i);
}
var num=0;
var i;
function startCount(){
document.getElementById('count').value=num;
num=num+1;
i=setTimeout("startCount()",1000);
}
function stopCount(){
clearTimeout(i);
}
2015-01-20
form:
<input type="text" id="count" onclick="startCount()"/>
js:
var num=0;
function startCount() {
document.getElementById('count').value=num;
num=num+1;
setTimeout('startCount()',1000)
}
<input type="text" id="count" onclick="startCount()"/>
js:
var num=0;
function startCount() {
document.getElementById('count').value=num;
num=num+1;
setTimeout('startCount()',1000)
}
2015-01-20
<form>
<input type="text" id="clock" size="50" />
<input type="button" value="Stop" onclick="clearInterval(j)" />
</form>
<input type="text" id="clock" size="50" />
<input type="button" value="Stop" onclick="clearInterval(j)" />
</form>
2015-01-20