fix build.cs

Author: WeihanLi

build.cs

@@ -1,9 +1,6 @@
-var root = Directory.GetCurrentDirectory();
-foreach (var scripts in Directory.GetFiles(root, "*.cs", SearchOption.AllDirectories))
+foreach (var script in Directory.GetFiles(Directory.GetCurrentDirectory(), "*.cs", SearchOption.AllDirectories))
 {
-    foreach (var script in scripts)
-    {
-        Console.WriteLine($"Compile script {script} test");
-        CommandExecutor.ExecuteCommandAndOutput($"dotnet-exec {script} --dry-run").EnsureSuccessExitCode();
-    }
+    Console.WriteLine($"Compile script {script} test begin");
+    CommandExecutor.ExecuteCommandAndOutput($"dotnet-exec {script} --dry-run").EnsureSuccessExitCode();
+    Console.WriteLine($"Compile script {script} test pass");
 }