运行后第一行总是出现这种错误:properties may only be assigned using a simple eg."prop=value"
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MSComm1->CommPort=ComboBox1->ItemIndex+ 1; botl= ComboBox2->Text; MSComm1->Settings=botl+",n,8,1"; MSComm1->PortOpen=true; Button1->Caption="Close"; 运行后第一行总是出现这种错误:properties may only be assigned using a simple eg."prop=value"