省市区字典数组-优快云博客

本文链接：https://blog.youkuaiyun.com/ything_o/article/details/47059929

本文介绍了一种使用Objective-C来解析文件中存储的省、市、区数据的方法，并通过循环遍历将这些数据组织成嵌套字典和数组的形式。

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 //准备工作
    NSString *path = @"/Users/dlios/Desktop/OC/OC06_省市区字典数组/OC06_省市区字典数组/area.txt";
   //根据路径产生响应的字符串
    NSString *str = [NSString stringWithContentsOfFile:path encoding:NSUTF8StringEncoding error:nil];
    //对字符串进行切割
    NSArray *strArr =[str componentsSeparatedByString:@"\n"];


    //创建一个省数组
    NSMutableArray *proArr = [NSMutableArray array];
    for (NSString *temp in strArr) {
        if (![temp hasPrefix: @" "]) {
            //创建一个省的字典
            NSMutableDictionary *proDic = [NSMutableDictionary dictionary];
            //给省字典添加键值对
            //省名
            [proDic setObject:temp forKey:@"proName"];

            //创建一个市数组
            NSMutableArray *cityArr = [NSMutableArray array];
            //添加到省字典中
            [proDic setObject:cityArr forKey:@"cityArr"];
            //把省字典放入到省数组中
            [proArr addObject:proDic];
        }else if ([temp hasPrefix:@"  "] && ![temp hasPrefix:@"    "]){
           //找到对应城市
           //创建市字典
            NSMutableDictionary *cityDic = [NSMutableDictionary dictionary];
            //第一对 市名
            [cityDic setObject:temp forKey:@"cityName"];
            //第二对 区数组
            NSMutableArray *zoneArr = [NSMutableArray array];
            [cityDic setObject:zoneArr forKey:@"zoneArr"];
            //给市字典找到一个位置
            //先找到对应的省字典
            NSMutableDictionary *proDic = [proArr lastObject];
            //再找对应的市数组
            NSMutableArray *cityArr = proDic[@"cityArr"];
            //再把市字典放到市数组中
            [cityArr addObject:cityDic];


        }else{
        //先找省字典
            NSMutableDictionary *proDic = [proArr lastObject];
        //找市数组
            NSMutableArray *cityArr = proDic[@"cityArr"];
        //市字典
            NSMutableDictionary *cityDic = [cityArr lastObject];
        //区数组
            NSMutableArray *zoneArr = cityDic[@"zoneArr"];
        //添加
            [zoneArr addObject:temp];

        }
    }

 //fonin遍历省数组
    for (NSMutableDictionary *dic in proArr) {
        NSLog(@"%@", dic[@"proName"]);
        NSMutableArray *cityArr = dic[@"cityArr"];
        for (NSMutableDictionary *cityDic in cityArr) {
            NSLog(@"%@", cityDic[@"cityName"]);
            NSMutableArray *zoneArr = cityDic[@"zoneArr"];
            for (NSString *str in zoneArr) {
                NSLog(@"%@", str);
            }
        }

    }