刚到手的电脑,装好STEP 7,一开始还能打开的,后来
打开SIMATIC MANAGERF时出现警报the drive or network connection that the shortcut‘ SIMATIC Manager lnk’ refers to is unavailable,make sure that the disk is properly inserted or the network resource is avaklable ,and then try again
怎么解决?请各位大侠帮忙!