go判断是否为大陆省份

1、常量的定义

// 大陆省份（不包括港澳台）
const (
	// 4个直辖市
	ProvBeiJing   = "北京"
	ProvTianJin   = "天津"
	ProvShangHai  = "上海"
	ProvChongQing = "重庆"
	// 5个自治区
	ProvGuangXi   = "广西"
	ProvNeiMengGu = "内蒙古"
	ProvXiZang    = "西藏"
	ProvNingXia   = "宁夏"
	ProvXinJiang  = "新疆"
	// 22个省
	ProvHeBei        = "河北"
	ProvShanXi       = "山西"
	ProvLiaoNing     = "辽宁"
	ProvJiLin        = "吉林"
	ProvHeiLongJiang = "黑龙江"
	ProvJiangSu      = "江苏"
	ProvZheJiang     = "浙江"
	ProvAnHui        = "安徽"
	ProvFuJian       = "福建"
	ProvJiangXi      = "江西"
	ProvShanDong     = "山东"
	ProvHeNan        = "河南"
	ProvHuBei        = "湖北"
	ProvHuNan        = "湖南"
	ProvGuangDong    = "广东"
	ProvHaiNan       = "海南"
	ProvSiChuan      = "四川"
	ProvGuiZhou      = "贵州"
	ProvYunNan       = "云南"
	ProvShaanxi      = "陕西"
	ProvGanSu        = "甘肃"
	ProvQingHai      = "青海"
)

2、判断方法

package internet

import (
	"consts"
	"strings"
)

// IsMainland : 判断省份是否属于大陆（不包括港澳台）
func IsMainland(prov string) (string, bool) {
	var isMainland bool
	address := ""

	if prov == "" {
		return address, isMainland
	}

	provs := []string{
		// 4个直辖市"北京""天津""上海""重庆"
		consts.ProvBeiJing, consts.ProvTianJin, consts.ProvShangHai, consts.ProvChongQing,

		// 5个自治区"广西""内蒙古""西藏""宁夏""新疆"
		consts.ProvGuangXi, consts.ProvNeiMengGu, consts.ProvXiZang, consts.ProvNingXia, consts.ProvXinJiang,

		// 22个省"河北""山西""辽宁""吉林""黑龙江"
		consts.ProvHeBei, consts.ProvShanXi, consts.ProvLiaoNing, consts.ProvJiLin, consts.ProvHeiLongJiang,

		// 22个省"江苏""浙江""安徽""福建""江西"
		consts.ProvJiangSu, consts.ProvZheJiang, consts.ProvAnHui, consts.ProvFuJian, consts.ProvJiangXi,

		// 22个省"山东""河南""湖北""湖南""广东"
		consts.ProvShanDong, consts.ProvHeNan, consts.ProvHuBei, consts.ProvHuNan, consts.ProvGuangDong,

		// 22个省"海南""四川""贵州""云南""陕西"
		consts.ProvHaiNan, consts.ProvSiChuan, consts.ProvGuiZhou, consts.ProvYunNan, consts.ProvShaanxi,

		// 22个省"甘肃""青海"
		consts.ProvGanSu, consts.ProvQingHai,
	}

	for i := 0; i < len(provs); i++ {
		// 判断prov是否包含provs[i], eg: prov="贵州省贵阳市南明区", provs[i]="贵州", 返回true
		if strings.Contains(prov, provs[i]) {
			isMainland = true
			address = provs[i]
			break
		}
	}

	return address, isMainland
}