string、int、int64相互转换 - Tue, May 7, 2019

import "strconv"  //先导入strconv包

// string到int
int, err := strconv.Atoi(string)

// string到int64
int64, err := strconv.ParseInt(string, 10, 64)

// int到string
string := strconv.Itoa(int)

// int64到string
string := strconv.FormatInt(int64,10)

package main

import (
	"fmt"
	"strconv"
)

func main() {
	// string到int
	intValue, err := strconv.Atoi("1557214948")
	if err != nil {
		fmt.Println("string to int err:", err)
		return
	}
	fmt.Println("int value:", intValue)

	// string到int64
	int64Value, err := strconv.ParseInt("1557214948", 10, 64)
	if err != nil {
		fmt.Println("string to int64 err:", err)
		return
	}
	fmt.Println("int64 value:", int64Value)

	// int到string
	stringValue := strconv.Itoa(intValue)
	fmt.Println("int to string value:", stringValue)

	// int64到string
	stringValue = strconv.FormatInt(int64Value, 10)
	fmt.Println("int64 to string value:", stringValue)
}

int value: 1557214948
int64 value: 1557214948
int to string value: 1557214948
int64 to string value: 1557214948