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关于CheDabang.js背景

如同往常一般,在博客论坛的溜达的时候。看见有人询问canvas画数据图画,不由的就拿起自己桌子上的《高三》温习了一下好久用到的canvas知识点。 打算自己练手用canvas画几个数据图,在画的时候脑子迸出一个想法。写上一堆数据图留着自己以后用。

使用说明:

1、折线图:

 new Line(data,id);  语法格式

具体实例

<script type="text/javascript">
	var data = {
		0: 260,
		1: 200,
		2: 168,
		3: 450,
		4: 360,
		5: 320,
		6: 237,
		7: 189,
		8: 257,
		9: 389,
		10: 289,
		11: 236
	}
	var line = new Line(data, "#line");
</script>

2、饼状图:

new Pie(data,id);   语法格式

具体实例

<script type="text/javascript">
	var data = {
		0: 260,
		1: 200,
		2: 168,
		3: 450,
		4: 360,
		5: 320,
		6: 237,
		7: 189,
		8: 257,
		9: 389,
		10: 289,
		11: 236
	}
	var pie = new pie(data, "#pie");
</script>

3、柱状图:

new Bar(data,id);   语法格式

具体实例

<script type="text/javascript">
	var data = {
		0: 260,
		1: 200,
		2: 168,
		3: 450,
		4: 360,
		5: 320,
		6: 237,
		7: 189,
		8: 257,
		9: 389,
		10: 289,
		11: 236
	}
	var bar = new Bar(data, "#bar");
</script>

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