This is a VB6.0 example on MSDN, but I make a slight alteration can realize arbitrary input IP address, the realization of the purpose of communication

Packet : 113172196tcp_winsock_controler.rar filelist
TCP基础\frmclient.frm
TCP基础\frmclient2.frm
TCP基础\frmDocument.frm
TCP基础\frmDocument.frx
TCP基础\frmMain.frm
TCP基础\frmMain.frx
TCP基础\frmserver.frm
TCP基础\Module1.bas
TCP基础\MSSCCPRJ.SCC
TCP基础\Project1.vbp
TCP基础\Project1.vbw
TCP基础\WINSOCK SCOURCE.exe
TCP基础\WINSOCK SCOURCE.vbp
TCP基础\WINSOCK SCOURCE.vbw
TCP基础\组1.vbg
TCP基础

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