前言：
幸运之神的降临，往往只是因为你多看了一眼，多想了一下，多走了一步
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line（线）
svg{
width:800px;
height:600px;
background:#fff;
}
line{
stroke:#000;
stroke-width:10;
}
<svg>
<line x1="100" y1="100" x2="300" y2="300"/>
</svg>
rect（矩形）
rect{
x:100;
y:100;
width:200px;
height:150px;
fill:#f00;
stroke:#000;
stroke-width:10;
fill-opacity:0.5;
rx:20;
ry:20;
}
<rect />
circle（圆形）
circle{
cx:300;
cy:200;
r:100;
fill:#f00;
stroke:#000;
stroke-width:10;
fill-opacity:0.5;
}
<circe />
ellipse(椭圆)
ellipse{
cx:300;
cy:200;
rx:200;
ry:100;
fill:none;
stroke:#000;
}
<ellipse />
polygon(多边形)
<polygon points="400,100 500,400 250,200 550,200 300,400" fill="#f90" stroke="#000"></polygon>
polyline（折线）
<polyline points="100,100 200,100 250,120 200,150"></polyline>
path(路径)
<path d="M100,100 L200,100 L200,300 Z" />
<path d="M100,100 Q150,0 200,100 T250,100" />
<path d="M100,100 C150,20 250,50 300,100 S350,200 400,100 Z" />
M moveto
L lineto
H 水平to
V 垂直to
C 三次贝塞尔曲线
S 继续画三次贝塞尔曲线
Q 二次贝塞尔曲线
T 继续画二次贝塞尔曲线
A 弧
Z 闭合
库
国产
echarts 百度
进口
Raphaël
threejs
highcharts
charts
d3
openlayers
中国地图
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
*{
margin: 0;
padding: 0;
}
body{
background: #000;
text-align: center;
}
svg{
width: 1000px;
height: 600px;
background: #fff;
}
path{
stroke: #000;
fill: red;
}
</style>
</head>
<body>
<svg>
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</svg>
</body>
</html>
