99久久国产综合精品女不卡-99久久好看一级毛片-99久久精品99999久久-99久久精品费精品国产-99久久精品费精品国产一区二

請(qǐng)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(xiàn)：
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(qǐng)各老師指教！