将第三库分割成多个文件
  使用SplitChunksPlugin进行手工分割
  splitChunks=[  maxInitialRequest:Infinity,  maxSize:0,  chunks:'all',  cacheGroups:{   antVendor:{     name :'ant-design',     test:/[\\/]node_modules[\\/](ant-design-vue)[\\/]/,   },   vendor:{   name :'vendor',   test:/[\\/]node_modules[\\/](!ant-design-vue)[\\/]/,   }  } ] 
 根据文件大小自动分割
 splitChunks=[  maxInitialRequest:Infinity,  maxSize:300*1024,  chunks:'all',  cacheGroups:{   antVendor:{   test:/[\\/]node_modules[\\/]/, name(module):{ const packageName=module.context.match(/[\\/]node_modules[\\/](.*?)([\\/]|$)/)[1] return `npm.{packageName.replace('@','')` }    }  } ]