Objective-C学习之常见的数据类型的转换

1、不可变字典转可变字典

NSDictionary * dict = [[NSDictionary alloc] init];
    NSMutableDictionary * mDict = [NSMutableDictionary dictionaryWithDictionary:dict]; 
           

2、不可变数组转可变数组

NSArry *array = [NSArray array];
NSMutableArray *mutableArray = [NSMutableArray arrayWithArray:array];
           

NSString *valueStr = @"112233";
           

3、字符串转换成bool