Update release script

Gumball2415 · Gumball2415 · commit ea64235e2933 · 2022-11-01T14:48:05.000+08:00
diff --git a/release.bat b/release.bat
@@ -1,4 +1,7 @@
 rem usage: release.bat configuration platform [commithash]
+
+rem delete existing distribution files, if it exists
+del distribute /q /f
 mkdir distribute
 
 if "%2"=="Win32" (
