go build -o server main.go server.go
./server

nc 127.0.0.1 8888

go build -o server main.go server.go user.go
./server

nc 127.0.0.1 8888

nc 127.0.0.1 8888

nc 127.0.0.1 8888

go build -o server main.go server.go user.go
./server

nc 127.0.0.1 8888
hello

nc 127.0.0.1 8888
nihao

go build -o server main.go server.go user.go
./server

nc 127.0.0.1 8888
hello

nc 127.0.0.1 8888
nihao

go build -o server main.go server.go user.go
./server

nc 127.0.0.1 8888
who

nc 127.0.0.1 8888
who

go build -o server main.go server.go user.go
./server

nc 127.0.0.1 8888
who
rename|yifanweng
who

go build -o server main.go server.go user.go
./server

nc 127.0.0.1 8888

[127.0.0.1:52282]127.0.0.1:52282:已上线
你已超时，程序关闭...

go build -o server main.go server.go user.go
./server

nc 127.0.0.1 8888
rename|yifanweng
to|wyf|hello

nc 127.0.0.1 8888
rename|wyf
to|yifanweng|hi

go build -o server main.go server.go user.go
./server

go build -o client client.go
./client -ip 127.0.0.1 -port 8888