go 写文件

 

 

package main

import (
	"fmt"
	"os"
)

type student struct {
	Name string
	Age int
	Score float32
}
//从字符串中格式化输入
func formateFromstr() {
	str := "stu01 18 89.92"
	var stu student
	fmt.Sscanf(str, "%s %d %f", &stu.Name, &stu.Age, &stu.Score)
	fmt.Println(stu.Name, stu.Age, stu.Score)
}

func main() {
	//打开普通的文件
	file, err := os.OpenFile("ss.log", os.O_CREATE|os.O_WRONLY, 066)
	if err != nil {
		fmt.Println("open file error:", err)
		return
	}
	//写文件，输出到文件
	fmt.Fprint(file, "aaaaa", "aaaaa")
	//输出到终端
	fmt.Fprint(os.Stdout, "aaaaa", "\n")
	//从字符串中格式化输入
	formateFromstr()
}