清华

FLUTTER_STORAGE_BASE_URL=https://mirrors.tuna.tsinghua.edu.cn/flutter

PUB_HOSTED_URL=https://mirrors.tuna.tsinghua.edu.cn/dart-pub

上海交大 

PUB_HOSTED_URL=https://dart-pub.mirrors.sjtug.sjtu.edu.cn

FLUTTER_STORAGE_BASE_URL=https://mirrors.sjtug.sjtu.edu.cn

CNNIC

PUB_HOSTED_URL=http://mirrors.cnnic.cn/dart-pub

FLUTTER_STORAGE_BASE_URL=http://mirrors.cnnic.cn/flutter

腾讯

PUB_HOSTED_URL=https://mirrors.cloud.tencent.com/dart-pub

FLUTTER_STORAGE_BASE_URL=https://mirrors.cloud.tencent.com/flutter

Flutter中文站

export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn