anchor.diff:          python" \
   && BUILD_DEPENDENCIES="xz-utils " \
   && apt-get update \
  -&& apt-get install --no-install-recommends --no-install-suggests -y ${RUNTIME_DEPENDENCIES} ${BUILD_DEPENDENCIES} \
  -&& cd "${DOTNET_SETUP_DIR}/" \
  +&& apt-get install --no-install-recommends --no-install-suggests -y ${RUNTIME_DEPENDENCIES} ${BUILD_DEPENDENCIES}
   
   ##### ##### ##### ##### ##### ##### ##### ##### ##### #####
   #                           
  
positive.code: #                       
  ##### ##### ##### ##### ##### ##### ##### ##### ##### #####
  RUN echo "  Install Front Building Support " \
  
  # gpg keys listed at https://github.com/nodejs/node#release-team
  && gpg --keyserver pool.sks-keyservers.net --recv-keys 94AE36675C464D64BAFA68DD7434390BDBE9B9C5 \
  
negative.code: #  PS：还可以挂载到宿主机类库到指定目录下执行dotnet restore --packages <PACKAGES_DIRECTORY>
  #                          
  ##### ##### ##### ##### ##### ##### ##### ##### ##### #####
  RUN echo " Install .Net Core SDK  " \
  
  && cd "${DOTNET_SETUP_DIR}/" \
  && DOTNET_SDK_DOWNLOAD_URL="https://dotnetcli.blob.core.windows.net/dotnet/Sdk/$DOTNET_SDK_VERSION/dotnet-dev-debian-x64.$DOTNET_SDK_VERSION.tar.gz" \
  && wget -cq ${DOTNET_SDK_DOWNLOAD_URL} -O "${DOTNET_SETUP_DIR}/dotnet.tar.gz" \
  && mkdir -p /usr/share/dotnet \
  && tar -zxf "${DOTNET_SETUP_DIR}/dotnet.tar.gz" -C /usr/share/dotnet \
  && ln -sf /usr/share/dotnet/dotnet /usr/bin/dotnet \
  