欧美日韩在线一区二区-欧美日韩在线一区二区三区-欧美日韩在线一区亚洲二区-欧美日韩在线永久免费播放-欧美日韩整片中文字幕-欧美日韩制服丝袜六区

請教各老師如何在Windows*7安裝西門子軟件？為何我在電腦里安裝總是出現：
In order to install STEP 7-Micro/Win V4.0 SP6
you must first uninstall STEP 7-Micro/Win V4.0
from Add/Remove Programs After completing the
uninstallion restsrt this setup This setup will
now exit
可我在電腦以前安裝的以卸載了，可是安裝不上，有請各老師指教！