1. NSMutableArray *weekNsmArray = [[NSMutableArray alloc] initWithCapacity:3];
   
2.       
   
3.         [weekNsmArray addObject:@"1"];
   
4.         [weekNsmArray addObject:@"2"];
   
5.         [weekNsmArray addObject:@"3"];
   
6.         [weekNsmArray addObject:@"4"];

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请问如何插入int , double , char ?

额……  这玩意里面只能装oc对象，你说的这些值类型数据需要用NSNumber类转换成OC对象才能装进去，看看NSNumber吧，很简单的