你在windows上使用圖像組件沒有任務問題，但部署到linux之後，將注意以下幾點：
- 安裝nuget包ZKWeb.System.Drawing
- 項目裏還是引用System.DrawingCore，這點不用改
- 安裝gdiplus插件，這個需要根據linux類型不同，有不同的方法，大叔做了一下總結
安裝gdiplugs的方法
大叔總結的方法
ubuntu && debian
sudo apt-get install libgdiplus
cd /usr/lib
sudo ln -s libgdiplus.so gdiplus.dll
centos
yum whatprovides libgdiplus && yum install -y epel-release && yum install -y libgdiplus-2.10-9.el7.x86_64 && yum install -y libgdiplus-devel
官方提供的方法：
Ubuntu 16.04:
apt-get install libgdiplus
cd /usr/lib
ln -s libgdiplus.so gdiplus.dll
Fedora 23:
dnf install libgdiplus
cd /usr/lib64/
ln -s libgdiplus.so.0 gdiplus.dll
CentOS 7:
yum install autoconf automake libtool
yum install freetype-devel fontconfig libXft-devel
yum install libjpeg-turbo-devel libpng-devel giflib-devel libtiff-devel libexif-devel
yum install glib2-devel cairo-devel
yum install git
git clone https://github.com/mono/libgdiplus
cd libgdiplus
yum -y install ftp
./autogen.sh
yum -y install gcc automake autoconf libtool make
yum -y install gcc gcc-c++
make
make install
cd /usr/lib64/
ln -s /usr/local/lib/libgdiplus.so gdiplus.dll
Docker:
RUN apt-get update
RUN apt-get install -y libgdiplus
RUN cd /usr/lib
RUN sudo ln -s libgdiplus.so gdiplus.dll
例子:
FROM mcr.microsoft.com/dotnet/core/aspnet:2.2-stretch-slim AS base
WORKDIR /app
EXPOSE 80
FROM mcr.microsoft.com/dotnet/core/sdk:2.2-stretch AS build
RUN apt-get update
RUN apt-get install -y libgdiplus
RUN cd /usr/lib
RUN sudo ln -s libgdiplus.so gdiplus.dll
WORKDIR /src
COPY ["DC_MMS_API/DC_MMS_API.csproj", "DC_MMS_API/"]
COPY ["Core/Core.csproj", "Core/"]
COPY ["Infrastructure/Infrastructure.csproj", "Infrastructure/"]
RUN dotnet restore "DC_MMS_API/DC_MMS_API.csproj"
COPY . .
WORKDIR "/src/DC_MMS_API"
RUN dotnet build "DC_MMS_API.csproj" -c Release -o /app
FROM build AS publish
RUN dotnet publish "DC_MMS_API.csproj" -c Release -o /app
FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "DC_MMS_API.dll"]