检验身份证的正确性(Golang版本)

时间:2024-03-11 19:55:42
// CheckID_card project main.go
package main

/*
 * ai -> a1 , a2, a3, a4, a5, a6... a17 (a18 是校验码) 身份证前17位对应(ai)
 * wi -> 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 (17位)
 *
 *  int  res = 0;
 *  for (i = 1; i < 17; i++) {
 *          res += (a[i] * w[i])
 *          }
 *     int  y = res % 11;
 *
 *
 * y 与 a18的对应关系
 *
 *  y    { 0, 1,  2,  3, 4, 5, 6, 7, 8, 9, 10}
 *  a18  { 1, 0, \'X\', 9, 8, 7, 6, 5, 4, 3,  2 } -> vefiry[18] = { 1, 0, \'X\', 9, 8, 7, 6, 5, 4, ,3, 2};
 */

import (
    "fmt"
    "strconv"
    //"os"
    //"strings"
)

func byte2int(x byte) byte {
    if x == 88 {
        return \'X\'
    }
    return (x - 48) // \'X\' - 48 = 40;
}

func check_id(id [17]byte) int {
    arry := make([]int, 17)

    //强制类型转换,将[]byte转换成[]int ,变化过程
    // []byte -> byte -> string -> int
    //将通过range 将[]byte转换成单个byte,再用强制类型转换string(),将byte转换成string
    //再通过strconv.Atoi()将string 转换成int 类型
    for index , value := range id {
        arry[index], _ = strconv.Atoi(string(value))
    }
    /*
        for p := 0; p < len(arry); p++ {
            fmt.Println("arry[", p, "]", "=", arry[p])
        }
    */

    var wi [17]int = [...]int{7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2}
    var res int
    for i := 0; i < 17; i++ {
        //fmt.Println("id =", i, byte2int(id[i]), wi[i])
        res += arry[i] * wi[i]
    }

    //fmt.Println("res = ", res)

    return (res % 11)
}

func verify_id(verify int, id_v byte) (bool, string) {
    var temp byte
    var i int
    a18 := [11]byte{1, 0, \'X\', 9, 8, 7, 6, 5, 4, 3, 2}

    for i = 0; i < 11; i++ {
        if i == verify {
            temp = a18[i]
            //fmt.Println("verify_id id",)
            // if a18[i] == \'X\' ,let convert it to type string
            if (a18[i] == 88 ) {
                fmt.Println("计算得到身份证最后一位是 ", string(a18[i]))
            } else {
            fmt.Println("计算得到身份证最后一位是 ", a18[i])
                }
            //fmt.Println(i, temp)
            break
        }
    }
    //if id_v == \'X\', let\'s convert it to type string
    if (id_v == 88) {
    fmt.Println("身份证最后一位是 ", string(id_v))
           } else {
    fmt.Println("身份证最后一位是  ", id_v) // id_v是身份证的最后一位
           } 

    if temp == id_v {

        return true, "验证成功"
    }

    return false, "验证失败"
}

func usage() {
    fmt.Println("请输入要检查的身份证号码18位\n")
}

func main() {
    var id_card [18]byte // \'X\' == byte(88), \'X\'在byte中表示为88
    var id_card_copy [17]byte

    var id_card_string string
    fmt.Scanf("%s", &id_card_string)
    fmt.Println("身份证号码是 = ", id_card_string)
    //fmt.Println("id_card_string len = ", len(id_card_string))

    if len(id_card_string) < 18 {
        panic("必须要输入18位的身份证号码")
    }

    // 将字符串,转换成[]byte,并保存到id_card[]数组当中
    for k, v := range []byte(id_card_string) {
        id_card[k] = byte(v)
    }

    //复制id_card[18]前17位元素到id_card_copy[]数组当中
    for j := 0; j < 17; j++ {
        id_card_copy[j] = id_card[j]

        //fmt.Println(byte2int(id_card[j]))
    }
    /*
        fmt.Println(byte2int(id_card[17]))
        fmt.Println(string(id_card[17]))
    */
    /*
        y := check_id(id_card_copy)
        fmt.Println(y)
    */

    fmt.Println(verify_id(check_id(id_card_copy), byte2int(id_card[17])))
}

//测试身份证号码:34052419800101001X
//测试身份证号码:511028199507215915

 

运行效果如下:

 

代码托管于github: https://github.com/sndnvaps/CheckID_card