添加结构体，用nsvlue类

typedefstruct{

NSUIntegerline;

NSUIntegerrow;

} TileLocation;

//转换为NSValue

NSValue*value = [NSValuevalueWithBytes:&tileLocobjCType:@encode(TileLocation)];

//转换回结构体

TileLocation loc;

[valuegetValue:&loc];

CGRect rect1 = CGRectMake(0, 0, p_w_picpath2.size.width, p_w_picpath2.size.height);

CGRect rect2 = CGRectMake(p_w_picpath2.size.width/4, 0, p_w_picpath2.size.width/2, p_w_picpath2.size.height/2);

NSValue *rectValue1 = nil;

NSValue *rectValue2 = nil;

rectValue1 = [NSValue valueWithBytes:&rect1 objCType:@encode(CGRect)];

rectValue2 = [NSValue valueWithBytes:&rect2 objCType:@encode(CGRect)];

NSArray *rectArr = [NSArray arrayWithObjects:rectValue1,rectValue2, nil];

CGRect tmpRect;

[[rects objectAtIndex:i] getValue:&tmpRect];