Command-line arguments are a common way to parameterize execution of programs. For example, go run hello.go uses run and hello.go arguments to the go programpackage mainimport ("fmt""os" )func main() {argsWithProg := os.ArgsargsWithoutProg := os.Args[1:]arg := os.Args[3]fmt.Println(argsWithProg)fmt.Println(argsWithoutProg)fmt.Println(arg) }[./commonLineArgument a b c d] [a b c d] c总结 : 1 : ....
https://blog.csdn.net/westhod/article/details/80799266 db,err := sql.Open("mysql","root:root@/forge")if err != nil {panic(err)}rows,err := db.Query("select id,name from sy_staff")for rows.Next() {var id intvar name stringerr = rows.Scan(&id,&name)fmt.Println(id)fmt.Println(name)} "在rows.Scan时，传入的参数个数必须与SELECT返回的字段个数一致，否则会报错" 吐了。。。