@types/react-router 和 react-router是有什么不同代表了啥
"@types/react": "^17.0.14",
"@types/react-dom": "^17.0.9",
"@types/react-router": "^5.1.16",
"@types/react-router-dom": "^5.1.8",
"react": "^17.0.2",
"react-dom": "^17.0.2",
"react-router": "^5.2.0",
"react-router-dom": "^5.2.0",
如果项目是基于typescript写的，那么除了安装实际项目的依赖模块（react、react-dom、react-router、react-router-dom）外，也需要安装@types/开头的内容，因为这个类型信息在开发阶段起到校验和辅助作用，所以放在devDependencies里面因为将typescript转换为javascript的生成过程之后不需要它。
// package.json
{
"dependencies": {
"react": "^17.0.2",
"react-dom": "^17.0.2",
"react-router": "^5.2.0",
"react-router-dom": "^5.2.0",
},
"devDependencies": {
"mockjs": "^1.1.0",
"@types/react": "^17.0.14",
"@types/react-dom": "^17.0.9",
"@types/react-router": "^5.1.16",
"@types/react-router-dom": "^5.1.8",
}
}
package.json
"private": true, // 不需要发布的
