Linux系统如何安装.NET Core 3.1、5.0和6.0版本？

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使用.NET SDK和runtime，安装步骤如下：

1. 安装.NET SDK和runtime： - `sudo rpm -Uvh https://packages.microsoft.com/config/centos/7/packages-microsoft-prod.rpm` - `sudo yum install dotnet-sdk-3.1` - `sudo yum install aspnetcore-runtime-3.1`

net SDK和runtime

.Net Core 3.1和runtime

sudo rpm -Uvh packages.microsoft.com/config/centos/7/packages-microsoft-prod.rpm
sudo yum install dotnet-sdk-3.1
sudo yum install aspnetcore-runtime-3.1
# 检查安装是否正确，不出错就OK
dotnet --info

.Net 5 SDK和runtime

sudo rpm -Uvh packages.microsoft.com/config/centos/7/packages-microsoft-prod.rpm
sudo yum install dotnet-sdk-5.0
sudo yum install aspnetcore-runtime-5.0
# 检查安装是否正确，不出错就OK
dotnet --info

.Net 6SDK和runtime

sudo rpm -Uvh packages.microsoft.com/config/centos/8/packages-microsoft-prod.rpm
sudo yum install aspnetcore-runtime-6.0
sudo yum install dotnet-sdk-6.0
# 检查安装是否正确，不出错就OK
dotnet --info

注意：软连接问题

ln -s /use/share/dotnet/dotnet /usr/local/bin/dotnet