二维数组 - 如何计算第二个数组?

2-Dimensions Array - how to count the 2nd array?

我正在 xcode 中寻找用于获取第二个数组之和的代码。 你在代码中看到我的问题。如果有人能以这种方式支持我,我将不胜感激:

animation_images_buffer = [[NSMutableArray alloc] init];
NSArray *animationen_1 = @[@"image1_1.png", @" image1_2.png ", @" image1_3.png”]; 
NSArray *animationen_2 =  @[@"image2_1.png", @" image2_2.png ", @" image2_3.png ", @" image2_4.png ", @" image2_5.png”];

[animation_images_buffer addObject:[UIImage imageNamed: animationen_1]];    
[animation_images_buffer addObject:[UIImage imageNamed: animationen_2]];    

// I would like to get the sum of animationen_2
for (int i = 0; i < animationen_2.count; i++) { 
// …    
}

// Is it possible to do it like this anyhow?

for (int i = 0; i < animation_images_buffer[2].count;i++{
 // …
}

根据你问题的上下文,我假设你不是指 "sum"(字符串的总和是多少?)而是数组的大小(有多少 strings/elements)

因为没有array_name.count像你想做的那样...

你想要:[array_name 计数]

如:NSLog(@"there are %d objects in the array", [array count])