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18.html
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18.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>task 18</title>
<style>
#tip{
height: 150px;
margin: 20px;
}
#tip>span{
display: inline-block;
width: 10px;
}
#box>span{
display: inline-block;
width: 40px;
height: 40px;
text-align: center;
line-height: 40px;
background-color: red;
color: white;
margin-right: 20px;
margin-bottom: 20px;
border-radius: 5px;
}
</style>
</head>
<body>
<form>
<input type="text" id="data"/>
<input type="button" value="左侧入" id="btn1"/>
<input type="button" value="右侧入" id="btn2"/>
<input type="button" value="左侧出" id="btn3"/>
<input type="button" value="右侧出" id="btn4"/>
<input type="button" value="排序" id="btn5">
</form>
<div id="tip"></div>
<div id="box"></div>
<script>
var number = document.getElementById('data'),
tip = document.getElementById('tip'),
box = document.getElementById('box'),
btn1 = document.getElementById('btn1'),
btn2 = document.getElementById('btn2'),
btn3 = document.getElementById('btn3'),
btn4 = document.getElementById('btn4');
var total;
//获取数据
function getData(){
var data = number.value.trim();
var len = tip.children.length;
if(data === ""){
alert("输入无效，请重新输入！");
number.focus();
}
else if ((data < 10) || (data > 100)) {
alert("请输入10-100之间的数字！");
number.value = '';
number.focus();
}else if (len > 60) {
alert("数据条目总数不能大于60！");
}else{
return data;
}
}
//创建新的数字块节点
function createBox(data){
var newNode = document.createElement('span');
newNode.innerHTML = data;
return newNode;
}
//生成随机颜色
function ranColor(){
var c1 = Math.floor(Math.random(0, 1) * 255);
var c2 = Math.floor(Math.random(0, 1) * 255);
var c3 = Math.floor(Math.random(0, 1) * 255);
var color = 'rgb(' + c1 + ',' + c2 + ',' + c3 + ')';
return color;
}
//创建新的彩色矩形
function createTip(data){
var newNode = document.createElement('span');
data += 'px';
newNode.style.height = data;
newNode.style.backgroundColor = ranColor();
return newNode;
}
//左侧入
btn1.onclick = function(){
var data = getData();
if(data !== undefined){
var newNode = createBox(data);
box.insertBefore(newNode, box.firstChild);
var newTip = createTip(data);
tip.insertBefore(newTip, tip.firstChild);
number.value = '';
number.focus();
}
};
//右侧入
btn2.onclick = function(){
var data = getData();
if(data !== undefined){
var newNode = createBox(data);
box.appendChild(newNode);
var newTip = createTip(data);
tip.appendChild(newTip);
number.value = '';
number.focus();
}
};
//左侧出
btn3.onclick = function(){
alert(box.firstChild.innerHTML + '从左侧出');
box.removeChild(box.firstChild);
tip.removeChild(tip.firstChild);
number.focus();
};
btn4.onclick = function(){
alert(box.lastChild.innerHTML + '从右侧出');
box.removeChild(box.lastChild);
tip.removeChild(tip.lastChild);
number.focus();
};
btn5.onclick = function(){
var arr = [];
var len = tip.children.length;
for(var i = 0; i < len; i++){
arr[i] = parseInt(box.childNodes.item(i).innerHTML);
}
(function(){
var temp;
for(var i = len; i >= 2; i--){
for(var j = 0; j <= i - 1; j++){
if(arr[j] > arr[j + 1]){
temp = arr[j + 1];
arr[j + 1] = arr[j];
arr[j] = temp;
}
tip.innerHTML = '';
for(var k = 0; k < len; k++){
var newTip = createTip(arr[k]);
tip.appendChild(newTip);
}
box.innerHTML = '';
for(var k = 0; k < len; k++){
var newNode = createBox(arr[k]);
box.appendChild(newNode);
}
}
}
})();
};
</script>
</body>
</html>