一、第一种方法

添加仓储指令

rpm -Uvh https://packages.microsoft.com/config/centos/7/packages-microsoft-prod.rpm

执⾏安装命令:
1、如果不需要在linux上编译源码
yum install dotnet-runtime-6.0
2、如果需要在linux上编译源码
yum install dotnet-sdk-6.0
3、如果是有webapi接⼝或者⽹页
yum install aspnetcore-runtime-6.0
安装完成后输⼊指令
dotnet --info 查看是否安装正确

Centos7中安装Net5.0运⾏时，只需要把6.0替换为5.0

二、第二种方法

去微软官网找到下载链接Download .NET 6.0 (Linux, macOS, and Windows)

https://dotnet.microsoft.com/en-us/download/dotnet/6.0

wget

sudo mkdir dotnet
sudo tar zxvf dotnet-sdk-6.0.101-linux-x64.tar.gz -C dotnet

修改环境变量

vi /etc/profile

在文件尾部添加

export PATH=$PATH:/data/dotnet
export DOTNET_ROOT=/data/dotnet

测试dotnet --info

三、程序需改

判断运行环境是不是windows

bool isWindows = System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
string filePath = string.Empty;
if (isWindows)
{
    filePath = "c:/" + name;
}
else
{
    filePath = "/" + name;
}

四、运行程序

dotnet 程序名.dll

出现以下信息，是因为没有装aspnetcore的运行时，运行yum install aspnetcore-runtime-6.0即可

It was not possible to find any compatible framework version
The framework 'Microsoft.AspNetCore.App', version '6.0.0' (x64) was not found.
  - No frameworks were found.

You can resolve the problem by installing the specified framework and/or SDK.

The specified framework can be found at:
  - https://aka.ms/dotnet-core-applaunch?framework=Microsoft.AspNetCore.App&framework_version=6.0.0&arch=x64&rid=centos.7-x64

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