.net10 dotnet run Program.cs 原理

环境：

window11
.net10

本质是先编译再运行，看如下实验：

1. 简单示例

2. 探究原理和编译缓存目录

看缓存编译：

那么这个缓存是什么规则呢？先说结论：

缓存的目录命名规则是: "{文件名}-{文件全路径的hash}"

可以参考下面的实验：

测试脚本

bash 复制代码

PS D:\jackletter\test> ls
PS D:\jackletter\test> ls C:\Users\jackl\AppData\Local\Temp\dotnet\runfile
PS D:\jackletter\test> echo 'Console.WriteLine($"hello dotnet run-{DateTime.Now}");' > demo.cs
PS D:\jackletter\test> dotnet run demo.cs
hello dotnet run-2026/7/3 17:08:53
PS D:\jackletter\test> ls -Name C:\Users\jackl\AppData\Local\Temp\dotnet\runfile
demo-ca516a08affde63fdcd4788ddecfb2b018c2dd5a8cbc39ad318d8582072c2252
PS D:\jackletter\test> echo 'Console.WriteLine($"hello-new dotnet run-{DateTime.Now}");' > demo.cs
PS D:\jackletter\test> dotnet run demo.cs
hello-new dotnet run-2026/7/3 17:09:12
PS D:\jackletter\test> ls -Name C:\Users\jackl\AppData\Local\Temp\dotnet\runfile
demo-ca516a08affde63fdcd4788ddecfb2b018c2dd5a8cbc39ad318d8582072c2252
PS D:\jackletter\test> mkdir test2 > $null
PS D:\jackletter\test> cd test2
PS D:\jackletter\test\test2> echo 'Console.WriteLine($"hello-new dotnet run-{DateTime.Now}");' > demo.cs
PS D:\jackletter\test\test2> dotnet run demo.cs
hello-new dotnet run-2026/7/3 17:09:52
PS D:\jackletter\test\test2> ls -Name C:\Users\jackl\AppData\Local\Temp\dotnet\runfile
demo-3dd7c831dfec09720963e1eb4a44fa860ac734fe1c6f9a261047a531937984e2
demo-ca516a08affde63fdcd4788ddecfb2b018c2dd5a8cbc39ad318d8582072c2252
PS D:\jackletter\test\test2>