OC 运用Dictionary & Array 实现省市区分类

NSString *filePath = @"/Users/dlios/Downloads/area.txt";

NSError *error = nil;

NSString *buffer = [NSString stringWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:&error];

if (error) {

NSLog(@"error : %@", [error localizedDescription]);

exit(1);

}

NSLog(@"%@", buffer);

NSArray *dataArray = [buffer componentsSeparatedByString:@"\n"];

NSLog(@"%@", dataArray);

NSMutableArray *provinces = [NSMutableArray array];

for (NSString *s in dataArray) {

// 找到 省

if (![s hasPrefix:@" "]) {

NSMutableArray *citys = [NSMutableArray array];

NSDictionary *pDic = [NSDictionary dictionaryWithObjectsAndKeys:s, @"name", citys, @"cities", nil];

[provinces addObject:pDic];

}

// 找到 城市

if ([s hasPrefix:@" "] && ![s hasPrefix:@" "]) {

NSMutableArray *areas = [NSMutableArray array];

NSDictionary *cDic = [NSDictionary dictionaryWithObjectsAndKeys:s, @"name", areas, @"areas", nil];

NSDictionary *pDic = [provinces lastObject];

NSMutableArray *cities = [pDic objectForKey:@"cities"];

[cities addObject:cDic];

}

// 找到 区

if ([s hasPrefix:@" "]) {

NSDictionary *pDic = [provinces lastObject];

NSArray *cities = [pDic objectForKey:@"cities"];

NSDictionary *cDic = [cities lastObject];

NSMutableArray *areas = [cDic objectForKey:@"areas"];

[areas addObject:s];

}

}

NSLog(@"%@", provinces);

for (NSDictionary *pDic in provinces) {

if ([[pDic objectForKey:@"name"] hasPrefix:@"山东"]) {

NSArray *cities = [pDic objectForKey:@"cities"];

for (NSDictionary *cDic in cities) {

if ([[cDic objectForKey:@"name"] hasPrefix:@" 烟台"]) {

NSArray *areas = [cDic objectForKey:@"areas"];

for (NSString *areaName in areas) {

NSLog(@"%@", areaName);

}

}

}

}

}