📊 图表制作工具Chart Maker

使用说明与常见问题How-to & FAQ

「图表制作工具」是什么？What is the Chart Maker tool?

粘贴表格数据（或从 Excel 复制）即可生成柱状图、条形图、折线图、面积图、饼图、环形图、雷达图和极坐标图，支持多系列、堆叠和标题，下载 PNG 图片。Paste table data (or copy from Excel) to make bar, horizontal bar, line, area, pie, doughnut, radar and polar charts with multiple series, stacking and a title — then download a PNG.

如何使用「图表制作工具」？How do I use the Chart Maker tool?

在「图表制作工具」中，按需设置「图表类型」、「标题」、「导出背景」等选项，然后点击「下载 PNG」按钮即可。In the Chart Maker: Set "Chart type", "Title", "Export background", then click "Download PNG".

数据怎么输入？How do I enter data?

每行一条：第一列是标签，后面每一列是一个数据系列，用逗号、Tab 或分号分隔；第一行如果是文字会被当作系列名称。可以直接从 Excel 或 Google 表格复制粘贴（Tab 分隔）。用逗号分隔时，带千位分隔符的数字要加英文双引号，如 "1,200"；某行列数多于表头会报错，少于表头时缺少的值按空白处理。NaN、Infinity 等非有限数字会报错。One row per item: the first column is the label and each further column is a series, separated by commas, tabs or semicolons. A text first row is used as series names. You can paste straight from Excel or Google Sheets (tab-separated). With commas, quote numbers that contain thousands separators, e.g. "1,200"; a row with more columns than the header is an error, and missing trailing values become gaps. Non-finite values such as NaN or Infinity are rejected.

用的是什么图表库？Which chart library is used?

Chart.js（MIT 许可），首次绘图时才加载；导出 PNG 时会按你选的背景色填充，避免透明背景在聊天软件中显示成黑色。Chart.js (MIT), loaded on first use. PNG export fills your chosen background color so the chart does not turn black on transparent-unfriendly apps.

数据会上传吗？Is my data uploaded?

不会，图表在浏览器本地绘制。No — charts are drawn locally in your browser.

「图表制作工具」免费吗？需要注册吗？Is the Chart Maker free? Do I need an account?

「图表制作工具」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Chart Maker is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.