console
window.addEventListener("load", function(){
var oOpenBaiduBtn = this.document.getElementById("openBaiduBtn");
var oBaiduWin = null;
oOpenBaiduBtn.addEventListener("click", function(){
oBaiduWin = window.open("http://www.baidu.com", "_blank");
});
var oCloseBaiduBtn = this.document.getElementById("closeBaiduBtn");
oCloseBaiduBtn.addEventListener("click", function(){
oBaiduWin.close();
});
var oOpenNewBtn = this.document.getElementById("openNewBtn");
var oNewWin = null;
oOpenNewBtn.addEventListener("click", function(){
oNewWin = window.open();
})
var oChangeNewBtn = this.document.getElementById("changeNewBtn");
oChangeNewBtn.addEventListener("click", function(){
oNewWin.document.title = "新窗口";
oNewWin.document.body.innerHTML="<div><p><strong>Hi</strong>, I'm a new window</p></div>";
oNewWin.document.body.style.color="blue";
})
var oCloseNewBtn = this.document.getElementById("closeNewBtn");
oCloseNewBtn.addEventListener("click", function(){
oNewWin.close();
})
})
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script>
</script>
</head>
<body>
<div>
<button id="openBaiduBtn">打开百度</button>
<button id="closeBaiduBtn">关闭百度</button>
</div>
<br/>
<div>
<button id="openNewBtn">打开空白页面</button>
<button id="changeNewBtn">绘制空白页面</button>
<button id="closeNewBtn">关闭空白页面</button>
</div>
<br/>
<div>
<button id="alertBtn">打开告警窗口</button>
<button id="confirmBtn">打开确认窗口</button>
<br/>
<div>
<button id="promptBtn">打开提示窗口</button>
<label>提示文字:</label><p id="text"></p>
</div>
</div>
<br/>
<div>
<button id = "startTimer">开始</button>
<button id = "stopTimer">结束</button>
<div id="timerBox"></div>
</div>
<br/>
<div>
<button id = "startInterval">开始</button>
<button id = "stopInterval">结束</button>
<div id="intervalBox"></div>
<span>倒计时：</span><span id="intervalText"></span>
</div>
</body>
</html>
#timerBox {
width: 100px;
height: 100px;
border : 1px solid black;
background-color: lightblue;
}
#intervalBox {
width: 100px;
height: 100px;
border : 1px solid black;
background-color:royalblue;
}