在golang中将字符串转换为数字

问题描述

Golang具有 strconv 库，该库将字符串转换为int64和uint64.

Golang has strconv library that converts string to int64 and uint64.

但是，其余整数数据类型似乎不受支持，因为我找不到字节，int16，uint16，int32和uint32数据类型的转换函数.

However, the rest of integer data types seems to be unsupported as I can't find conversion functions for byte, int16, uint16, int32, uint32 data types.

始终可以从字节，16位和32位数据类型转换为int64和uint64，而不会损失精度.这是语言的意图吗?

One can always convert from byte, 16-bit and 32-bit data types to int64 and uint64 without loss of precision. Is that what's intended by language?

推荐答案

如果您更仔细地查看文档，则可以使用此方法；

If you look at the docs a bit more closely you can use this method;

func ParseInt(s string, base int, bitSize int)

 bitSize  8  16  32  Atoi  base  10  b一样，err:= strconv.ParseInt("5"，10，8)

bitSize81632Atoi10baseb, err := strconv.ParseInt("5", 10, 8)

 fmt.Sprintf 

fmt.Sprintf

package main

import "fmt"
import "strconv"

func main() {
    var a int16
    a = 5
    s := fmt.Sprintf("%d", a)
    s2 := strconv.Itoa(int(a))
    fmt.Println(s)
    fmt.Println(s2)
}

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