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align=\"center\"\u003esprite-smith-loader\u003c/h1\u003e\r\n\r\n\r\n![image](https://img.shields.io/badge/license-MIT-green)\r\n![image](https://img.shields.io/badge/webpack-%5E4.0.0-blue)\r\n## 介绍\r\nsprite-smith-loader是一款自动生成雪碧图工具，你可以在webpack中使用它，它会遍历css中以_sprite.png结尾的图片并自动生成雪碧图，然后修改相应的css代码。\r\n\r\n支持**CSS**、**SASS**、**LESS**。\r\n\r\n图片应为png格式（不要直接将jpg图片后缀改为png）。\r\n## 安装\r\n下载sprite-smith-loader\r\n\r\n```\r\nnpm install --save-dev sprite-smith-loader remove-file-webpack-plugin\r\n```\r\n## 配置\r\n将loader添加到webpack的配置中，必须放在css-loader之后，别忘了添加file-loader或url-loader处理图片路径。\r\n\r\n**webpack.config.js**\r\n\r\n```\r\n// 添加 remove-file-webpack-plugin 来清理 sprites文件夹\r\nconst RemoveFileWebpackPlugin = require('remove-file-webpack-plugin'); \r\n\r\nmodule.exports = {\r\n  module: {\r\n    rules: [\r\n        {\r\n            test: /\\.(png|jpe?g|gif)$/i,\r\n            loader: 'file-loader',\r\n            options: {\r\n                outputPath: 'images',\r\n            },\r\n        },\r\n        {\r\n            test: /\\.css$/i,\r\n            use: ['style-loader', 'css-loader','sprite-smith-loader'],\r\n        }\r\n    ],\r\n  },\r\n  plugins: [\r\n    new RemoveFileWebpackPlugin({\r\n        dirNames:[\"sprites\"]\r\n    })\r\n  ],\r\n};\r\n```\r\n配合SASS\r\n\r\n```\r\nconst RemoveFileWebpackPlugin = require('remove-file-webpack-plugin'); \r\n\r\nmodule.exports = {\r\n  module: {\r\n    rules: [\r\n        {\r\n            test: /\\.(png|jpe?g|gif)$/i,\r\n            loader: 'file-loader',\r\n            options: {\r\n                outputPath: 'images',\r\n            },\r\n        },\r\n        {\r\n            test: /\\.(sass|scss|css)/,\r\n            use: ['style-loader', 'css-loader','sprite-smith-loader',\"sass-loader\"],\r\n        }\r\n    ],\r\n  },\r\n  plugins: [\r\n    new RemoveFileWebpackPlugin({\r\n        dirNames:[\"sprites\"]\r\n    })\r\n  ],\r\n};\r\n\r\n```\r\n\r\n\r\n## 使用\r\n修改图片名以 **_sprite.png** 结尾，并在css中引入它\r\n\r\n```\r\n.my_bg_1{\r\n    height: 100px;\r\n    width: 100px;\r\n    background: url('./demo1_sprite.png') 0px 0px;\r\n    background-size: 100px 100px;\r\n}\r\n\r\n.my_bg_2{\r\n    height: 100px;\r\n    width: 100px;\r\n    background: url('./demo2_sprite.png') -20px -20px;\r\n    background-size: 150px 150px;\r\n}\r\n```\r\n只要你遵循以下规范，loader会在css中引入生成的雪碧图作为新的背景图，并替换background-size、background-position等属性。\r\n    \r\n\r\n属性名 | 是否必填 | 说明\r\n---|---|---\r\nheight | true| 单位为 px\r\nwidth | true| 单位为 px\r\nbackground-size | true| 单位为 px\r\nbackground | true| 包含 image，position，repeat\r\nbackground-image | true| 包含于 background，图片名以 _sprite.png结尾\r\nbackground-position | false| 包含于 background，值为 px px 的形式\r\nbackground-repeat | false| 不要填no-repeat以外的值\r\n\r\n\r\n\r\n\r\n## License\r\n\r\n[MIT](https://github.com/sunft1996/sprite-smith-loader/blob/master/LICENSE)","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsunft1996%2Fsprite-smith-loader","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsunft1996%2Fsprite-smith-loader","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsunft1996%2Fsprite-smith-loader/lists"}