此软件的全称为“SIMATIC STEP 7 V5.4 incl SP3.1 Chinese", 是在完整的 V5.4标准版的基础上包含了中文版，如果切换到英文环境应该是和标准的英文版SP3.1完全一样！

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该软件不包含软件授权,网络转载,希望对到处找step7编程软件的朋友有所帮助.