这是 yarn add 命令的特性,执行时会检查 package.json 和相关lock文件,以方便其他人能直接使用。 参考官方文档:[https://classic.yarnpkg.com/en/docs/cli/add#toc-adding-depend...](https://link.segmentfault.com/?enc=oqZ2edAVvMpyB%2FYSrOUNIg%3D%3D.iN%2Bh2pDk%2BJfkvZ1Da4aqqkLD320R4WSmJG4UctKK2oOV7wiLT1Ha11ycG%2B62Y0xmO3Ipj7wgqSpqMnCB91Ou0UZFf0W4v1sw1EM7l7Az9MjaXZGZLwOc9l4pJ6SMIrwN4leQ2gJaV6NF%2BBF2qY39azZhtvlcfd5UJAWDydOOW0ahwLmKXKuQ9utLbENzOJ7iOG3X08ecuwnQ2nn%2FxTkmIQxityk4JpJiBnIfOsUnZDWOz6TjBF6%2FWXJAQA6q3yI8cXTblsww5%2BnkYLKy1oHai2t8dWxwvGneVK7ifvlaspJcLCk3OJEer1HBvgFah1cAvhHNfFP4Woh9vJxI6FO8ruflGz2%2BfmI0RyW%2BxqDICVMyG%2BNkTU1r8INg8dy5vh9PA3e2Z4vINBlBOFbqZUDrr%2FB%2FnLLg%2BaznfFT0hTNFwP8%3D)