端口传输和接收数据，为应用程序提供串行通讯功能。MSComm控件在串口编程时非常方便，程序员不必去花时间去了解较为复杂的API函数，而且在VC、VB、Delphi等语言中均可使用。 -Port transmission and reception of data and application procedures for serial communications capabilities. MSComm in serial programming extremely convenient programmer does not have to spend time to understand the more complex API function, but also in VC, VB, Delphi and other languages ​ ​ can be used.