go 打印输出

package main

import (
    "fmt"
)

func main() {
    v1 := "123"
    v2 := 123
    v3 := "Have a nice day\n"
    v4 := "abc"

    fmt.Print(v1, v2, v3, v4)
    fmt.Println()
    fmt.Println(v1, v2, v3, v4)
    fmt.Print(v1, " ", v2, " ", v3, " ", v4, "\n")
    fmt.Printf("%s%d %s %s\n", v1, v2, v3, v4)
}