Tutorial ECharts dan golang: Petua praktikal untuk membuat carta statistik berbilang kategori

package main

import (
    "net/http"

    "github.com/gin-gonic/gin"
    "github.com/go-echarts/go-echarts/charts"
)

func main() {
    // 创建一个gin实例
    r := gin.Default()

    // 创建一个折线图表
    line := charts.NewLine()

    // 添加X轴和Y轴数据
    line.AddXAxis([]string{"1月", "2月", "3月", "4月", "5月", "6月"}).
        AddYAxis("销量", []int{20, 50, 80, 120, 180, 200})

    // 将图表添加到gin实例中
    r.GET("/line", func(c *gin.Context) {
        c.Writer.Header().Set("Content-Type", "text/html; charset=utf-8")
        line.Render(c.Writer)
    })

    // 启动服务器
    http.ListenAndServe(":8080", r)
}

package main

import (
    "net/http"

    "github.com/gin-gonic/gin"
    "github.com/go-echarts/go-echarts/charts"
)

func main() {
    // 创建一个gin实例
    r := gin.Default()

    // 创建一个柱状图表
    bar := charts.NewBar()

    // 添加X轴和Y轴数据
    bar.AddXAxis([]string{"苹果", "香蕉", "橘子", "葡萄", "梨", "西瓜"}).
        AddYAxis("销量", []int{20, 50, 80, 120, 180, 200})

    // 将图表添加到gin实例中
    r.GET("/bar", func(c *gin.Context) {
        c.Writer.Header().Set("Content-Type", "text/html; charset=utf-8")
        bar.Render(c.Writer)
    })

    // 启动服务器
    http.ListenAndServe(":8080", r)
}

package main

import (
    "net/http"

    "github.com/gin-gonic/gin"
    "github.com/go-echarts/go-echarts/charts"
)

func main() {
    // 创建一个gin实例
    r := gin.Default()

    // 创建一个散点图表
    scatter := charts.NewScatter()

    // 添加散点数据
    scatter.AddXAxis([]int{10, 20, 30, 40, 50, 60}).
        AddYAxis("A", []int{200, 300, 400, 400, 500, 600}).
        AddYAxis("B", []int{100, 200, 300, 400, 450, 600})

    // 将图表添加到gin实例中
    r.GET("/scatter", func(c *gin.Context) {
        c.Writer.Header().Set("Content-Type", "text/html; charset=utf-8")
        scatter.Render(c.Writer)
    })

    // 启动服务器
    http.ListenAndServe(":8080", r)
}

package main

import (
    "net/http"

    "github.com/gin-gonic/gin"
    "github.com/go-echarts/go-echarts/charts"
)

func main() {
    // 创建一个gin实例
    r := gin.Default()

    // 创建一个饼图表
    pie := charts.NewPie()

    // 添加饼图数据
    pie.Add("苹果", 30).
        Add("香蕉", 20).
        Add("橘子", 10).
        Add("葡萄", 40)

    // 将图表添加到gin实例中
    r.GET("/pie", func(c *gin.Context) {
        c.Writer.Header().Set("Content-Type", "text/html; charset=utf-8")
        pie.Render(c.Writer)
    })

    // 启动服务器
    http.ListenAndServe(":8080", r)
}