一、使用 pyecharts 模块绘制折线图

1、折线图绘制过程

首先 , 导入折线图 Line 对象 , 该类定义在 pyecharts.charts 中 ;

# 导入 pyecharts 模块中的 折线图 Line 对象
from pyecharts.charts import Line

然后 , 创建 Line 类型折线图对象 ;

# 创建 折线图 对象
line = Line()

再后 , 分别设置 x 轴和 y 轴数据 ;

# 设置 x 轴数据
line.add_xaxis(["西城", "东城", "海淀", "朝阳", "昌平"])

# 设置 y 轴数据
line.add_yaxis("清北录取人数", [105, 28, 215, 16, 1])

最后 , 调用 Line 对象的 render() 函数 , 生成图标 ;

# 生成图表
line.render()

生成的折线图图表 , 会以 HTML 页面的形式展示出来 ;

生成的 HTML 文件名称为 render.html ;

在这里插入图片描述

2、完整代码示例

代码示例 :

"""
pyecharts 模块
"""

# 导入 pyecharts 模块中的 折线图 Line 对象
from pyecharts.charts import Line

# 创建 折线图 对象
line = Line()

# 设置 x 轴数据
line.add_xaxis(["西城", "东城", "海淀", "朝阳", "昌平"])

# 设置 y 轴数据
line.add_yaxis("清北录取人数", [105, 28, 215, 16, 1])

# 生成图表
line.render()

在该 python 源码的同目录中 , 生成 render.html ,

在这里插入图片描述
生成的 html 如下 :

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Awesome-pyecharts</title>
                <script type="text/javascript" src="https://assets.pyecharts.org/assets/v5/echarts.min.js"></script>

</head>
<body >
    <div id="f743bf5a10074ed784e9be0fb639863e" class="chart-container" style="width:900px; height:500px; "></div>
    <script>
        var chart_f743bf5a10074ed784e9be0fb639863e = echarts.init(
            document.getElementById('f743bf5a10074ed784e9be0fb639863e'), 'white', {renderer: 'canvas'});
        var option_f743bf5a10074ed784e9be0fb639863e = {
    "animation": true,
    "animationThreshold": 2000,
    "animationDuration": 1000,
    "animationEasing": "cubicOut",
    "animationDelay": 0,
    "animationDurationUpdate": 300,
    "animationEasingUpdate": "cubicOut",
    "animationDelayUpdate": 0,
    "aria": {
        "enabled": false
    },
    "color": [
        "#5470c6",
        "#91cc75",
        "#fac858",
        "#ee6666",
        "#73c0de",
        "#3ba272",
        "#fc8452",
        "#9a60b4",
        "#ea7ccc"
    ],
    "series": [
        {
            "type": "line",
            "name": "\u6e05\u5317\u5f55\u53d6\u4eba\u6570",
            "connectNulls": false,
            "xAxisIndex": 0,
            "symbolSize": 4,
            "showSymbol": true,
            "smooth": false,
            "clip": true,
            "step": false,
            "data": [
                [
                    "\u897f\u57ce",
                    105
                ],
                [
                    "\u4e1c\u57ce",
                    28
                ],
                [
                    "\u6d77\u6dc0",
                    215
                ],
                [
                    "\u671d\u9633",
                    16
                ],
                [
                    "\u660c\u5e73",
                    1
                ]
            ],
            "hoverAnimation": true,
            "label": {
                "show": true,
                "margin": 8
            },
            "logBase": 10,
            "seriesLayoutBy": "column",
            "lineStyle": {
                "show": true,
                "width": 1,
                "opacity": 1,
                "curveness": 0,
                "type": "solid"
            },
            "areaStyle": {
                "opacity": 0
            },
            "zlevel": 0,
            "z": 0
        }
    ],
    "legend": [
        {
            "data": [
                "\u6e05\u5317\u5f55\u53d6\u4eba\u6570"
            ],
            "selected": {}
        }
    ],
    "tooltip": {
        "show": true,
        "trigger": "item",
        "triggerOn": "mousemove|click",
        "axisPointer": {
            "type": "line"
        },
        "showContent": true,
        "alwaysShowContent": false,
        "showDelay": 0,
        "hideDelay": 100,
        "enterable": false,
        "confine": false,
        "appendToBody": false,
        "transitionDuration": 0.4,
        "textStyle": {
            "fontSize": 14
        },
        "borderWidth": 0,
        "padding": 5,
        "order": "seriesAsc"
    },
    "xAxis": [
        {
            "show": true,
            "scale": false,
            "nameLocation": "end",
            "nameGap": 15,
            "gridIndex": 0,
            "inverse": false,
            "offset": 0,
            "splitNumber": 5,
            "minInterval": 0,
            "splitLine": {
                "show": true,
                "lineStyle": {
                    "show": true,
                    "width": 1,
                    "opacity": 1,
                    "curveness": 0,
                    "type": "solid"
                }
            },
            "data": [
                "\u897f\u57ce",
                "\u4e1c\u57ce",
                "\u6d77\u6dc0",
                "\u671d\u9633",
                "\u660c\u5e73"
            ]
        }
    ],
    "yAxis": [
        {
            "show": true,
            "scale": false,
            "nameLocation": "end",
            "nameGap": 15,
            "gridIndex": 0,
            "inverse": false,
            "offset": 0,
            "splitNumber": 5,
            "minInterval": 0,
            "splitLine": {
                "show": true,
                "lineStyle": {
                    "show": true,
                    "width": 1,
                    "opacity": 1,
                    "curveness": 0,
                    "type": "solid"
                }
            }
        }
    ]
};
        chart_f743bf5a10074ed784e9be0fb639863e.setOption(option_f743bf5a10074ed784e9be0fb639863e);
    </script>
</body>
</html>