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init from self website
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@githubrenzhao
githubrenzhao committed Dec 25, 2021
1 parent 94968be commit b799925
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80 changes: 80 additions & 0 deletions ES6的第一份笔记.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>ES6语法新规范</title>
</head>
<body>
<h3>ES6语法规范</h3>
<hr />
<h4>变量声明let</h4>
<ol>
<li>let命令:声明新的变量,且变量只在范围内生效!</li>
<li>作用域重合的let声明各自独立生效!</li>
<li>变量在使用之后声明,var报错undefined,let报错ReferenceError!</li>
<li class="let">let声明必处于作用域首航,否则就是死域,报错ReferenceError!,即使变量之前被声明;</li>
<li>let命令在声明之后,再次声明同一个变量会报错!</li>
</ol>
<hr />
<h4>变量生命const</h4>
<ol>
<li>const声明的变量是一个只读的变量,不会改变,初始值必须赋予!</li>
<li>const声明的对象是可以赋予对象属性的!是可以push数据的!</li>
<li>相当于const声明的对象是被冻结的,解冻使用Object.freeze({})方法!</li>
<li>当对象是一个对象数组时,所有的对象也应该解冻!</li>
</ol>
</body>
</html>
<script>
var b=2;
(function(){
let b=1;
})();
console.log(b);//返回b=2
for (let i=0;i<3;i++) {
let i="你好,再见";
console.log(i);//输出三个你好再见
};

(function(){
//alert(b);
//let b="bbbb";//报错ReferenceError
})();

//var x=x;//不报错
//let x=x;//x is not defined;


function aa(){
let a="3";
//var a="32";//报错
//let a="12121";//报错
console.log(a);
}
aa();
function bb(arr){
{let arr;}//不报错
// let arr; //报错
};bb();



//解冻对象本身
var constantize = (obj) => {
Object.freeze(obj);
Object.keys(obj).forEach( (key, i) => {
if ( typeof obj[key] === 'object' ) {
constantize( obj[key] );
console.log(obj[key]);
}
});
};

//应用
let [ac,bc,cc]=["你好","sb","再见"];
console.log(ac+bc+cc);

// 自动解析
const [q,w]='你好';let {length :ll}="你好sb";console.log(ll);//4
console.log(q+w);
</script>
61 changes: 61 additions & 0 deletions canvas/.project
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>canvas</name>
<comment>Create By HBuilder</comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>com.pandora.projects.ui.MKeyBuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.aptana.ide.core.unifiedBuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>com.pandora.projects.ui.MKeyNature</nature>
<nature>com.aptana.projects.webnature</nature>
</natures>
<filteredResources>
<filter>
<id>0</id>
<name></name>
<type>10</type>
<matcher>
<id>org.eclipse.ui.ide.orFilterMatcher</id>
<arguments>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-projectRelativePath-matches-false-false-bin</arguments>
</matcher>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-projectRelativePath-matches-false-false-setting</arguments>
</matcher>
</arguments>
</matcher>
</filter>
<filter>
<id>1521699950206</id>
<name></name>
<type>26</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-node_modules</arguments>
</matcher>
</filter>
<filter>
<id>1521699950207</id>
<name></name>
<type>26</type>
<matcher>
<id>org.eclipse.ui.ide.multiFilter</id>
<arguments>1.0-name-matches-false-false-node_modules</arguments>
</matcher>
</filter>
</filteredResources>
</projectDescription>
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57 changes: 57 additions & 0 deletions canvas/321323.html
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<!DOCTYPE html>
<html>
<header>
<script type="text/javascript" src="js/jQuery-2.1.4.js"></script>
</header>
<style>
*{
padding: 0;
margin: 0;
}
.box>img {
width: 100%;
height: 100%;
}
.box{
position: absolute;
left: 0;
right: 0;
top: 0;
bottom: 0;
z-index: 9999999;
}
</style>

<body>
<div class="box" style="border: 1px solid red;">

</div>
<canvas id="myCanvas" style="border:1px solid #d3d3d3;">
Your browser does not support the HTML5 canvas tag.
</canvas>

<script>
var c = document.getElementById("myCanvas");
c.width=$(document).width();
c.height=$(document).height();
var ctx = c.getContext("2d");
var img = new Image();
ctx.fillStyle = "#fff";
ctx.font = "30px Arial";
img.src = "img/d-04-bg.png";
img.onload = function() {
ctx.drawImage(img, 0, 0, c.width, c.height);
ctx.fillText("1", $(document).width() * 0.3, $(document).height() * 0.3);
ctx.stroke();
};

var img1 = convertCanvasToImage(c);
$('.box').append(img1);
console.log(img1);

function convertCanvasToImage(canvas) {
var image1 = new Image();
image1.src = canvas.toDataURL("image/png");
return image1;
}
</script>
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190 changes: 190 additions & 0 deletions canvas/css/Global.css
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@charset "utf-8";
/* CSS Document */
/*
* 奇酷互联网络科技(深圳)有限公司 CSS Library 2.0
* @desc 部分CSS样式使用CSS3
* Copyright(c) 2015 版权所有 奇酷互联网络科技(深圳)有限公司
* @desc DATE 2015-12-1
*/

/*
* 将具有默认 html 取消浏览器字号限制
* @overlay *
* @desc 在手持设备或webkit中不会解析12px以下字体
*/
html,body {
width:100%;
height:100%;
min-width: 320px;
min-height:480px;
-ms-text-size-adjust: 100%;
-webkit-text-size-adjust: 100%;
/*-webkit-tap-highlight-color: #ffe5cc;*/
}
/* Global 常用标签_@Start */
/*
* 基本标签默认样式取消
* @overlay HTML标签
* @desc 取消基本标签默认样式,防止不同浏览器显示效果不同
* @Prop text-align:center; 解决不同浏览器剧中问题
*/
body,div,span,dl,dd,h1,h2,h3,h4,h5,h6,p,form,ul,ol,input{
margin:0 auto;
padding:0;
}
body{
color:#666;
font: 14px/1.5 "Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;
position: relative;
}
/*
* 标签属性
* @overlay select
* @desc 默认设置select效果
*/
select{
font-size:14px;
outline:none;
color:#666;
}
/*
* 标签属性
* @overlay textarea
* @desc 默认设置textarea效果
*/
textarea,input {
color:#666;
font-size:14px;
word-wrap:break-word;
word-break:break-all;
box-sizing: border-box;
outline:none;
font-family: "宋体";
}

/*
* 标签属性
* @overlay input
* @desc 去掉IE10文本框上的清除按钮
*/
input::-ms-clear{display:none;}
input[type='text'],input[type='password']{
color:#666;
border:1px solid #ccc;
}
input[type='buttom']{
border:none;
}
/*
* 标签属性
* @overlay table td th
* @desc 强制输入时内容超出时换行
*/
table {
width:100%;
border-collapse:collapse;
}
td,th{font-size:12px;}
/*
* 清除列表标记的样式
* @overlay ul,ol,li
* @desc ul,ol,li列表更多的用在不需要列表前置符号的样式里
*/
ul,ol{list-style-type:none;}
/*
* 定义图片边框
* @overlay img
* @desc 去除边框及图片底产无缘无故多出3px
*/
img{
border:none;
vertical-align: top;
-ms-interpolation-mode: bicubic;
}
/*
* 定义默认的链接样式
* @overlay a
* @desc 仅仅是作为默认样式提供，可以在各自的实例中覆盖掉
*/

a{
color: #666;
text-decoration:none;
outline: none;
}
a:hover{
text-decoration:none;
}
a:active,a:focus {
outline: none;
}
/* 去掉链接的虚线框*/

/*
* 定义H系列标签
* @overlay HN
* @desc 覆盖H系列标签默认属性
*/
h1{font-size:28px;}
h2{font-size:25px;}
h3{font-size:22px;}
h4{font-size:20px;}
h5{font-size:18px;}
h6{font-size:14px;}
/*
* 定义其他标签
* @overlay em,i,b,strong
*/
dfn,em,i,b,strong {
font-style:normal;
font-weight:normal;
}
.line {
display: block;
width: 100%;
font-size: 0;
height: 0px;
line-height: 0px;
border-top: 1px solid #DDDDDD;
border-bottom: 1px solid #FFFFFF;
}
/* @Global 常用标签_@end */

/* @group 通用属性定义_@Start */
/* 鼠标样式 */
.pointer{cursor:pointer;}
/*
* 字母和单词换行设置
* @class Break 强制内容换行
* @class Nobreak 强制内容不换行
*/
.Break{word-break:break-all;word-wrap:break-word;}
.Nobreak{word-break:keep-all;word-wrap:normal;}
/*
* 浮动定义
*/
.fl{float:left;}
.fr{float:right;}

/* @group 通用属性定义_@end */

/* @group 隐藏元素_@Start */
.o-hidden{overflow:hidden;}
.invisible{visibility:hidden;}
.hidden{display: none;}
.block {display:block;}
/* @group 隐藏元素_@end */

/*
* 备注
*/

/*
* 在终极页面中调用该通用样式时,应该注意显示效果的不同,因为后台上传信息时编辑器里面样式并没有调用本默认样式表.
* 所以在编辑器中标签会有默认的属性,用户在添加信息时,这些信息都是附带默认样式的.
* 如果用我们在终极页面也调用本默认CSS文件的话,许多标签如:p,td,li......标签默认样式都被取消,因此显示效不同.
*
* 解决办法:
* 在终极页面显示内容区域还原这些标签的默认属性.
* 版权所有 奇酷互联网络科技(深圳)有限公司
*/
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