如何将字符串值加载到数组中

Question

 {
    "north product 1" = "";
    "north product 2" = "";
    "north product 3" = "";
    "north product 4" = "";
}

如何将此字符串从字典加载到数组需要存储北方产品1，北方产品2，北方产品3，北方产品4。？

Answer 1

即使您之前没有使用NSDictionary课程的经验，两分钟实际查看docs会给您答案

NSArray *keys = [yourDictionary allKeys];

如果您决定使用值而不是键

，还有匹配的allValues方法

Answer 2

考虑到我没有描述任何内存管理规则。

NSMutableArray *arr = [NSMutableArray array];
NSString *nProduct1 = [aDictionary valueForKey:@"north product 1"];
NSString *nProduct2 = [aDictionary valueForKey:@"north product 2"];
NSString *nProduct3 = [aDictionary valueForKey:@"north product 3"];
NSString *nProduct4 = [aDictionary valueForKey:@"north product 4"];

[arr addObject:nProduct1];
[arr addObject:nProduct2];
[arr addObject:nProduct3];
[arr addObject:nProduct4];