问题:

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Objective C Equivalent of PHP's “Variable Variables” [duplicate] 2 answers

Incrementing variable names

In xcode I want to create 100 images one with the name1,2,3,4 ect. And i can do it all except for the variable names. For these I was wandering is it possible to increment the variables programmatically or whether it must be done manually?

回答1:

Instead of creating a bunch of variable names, you can use a dictionary object with the names as keys and the image object as the data.

回答2:

If you really want to/have to use 100 different variables and avoid an array you could use Key Value Coding in combination with a for loop:

NSString *name = @"myVariable";
for (int i = 0; i< 100; i++)
{
    // get aValue from somewhere...
    NSString *key = [NSString stringWithFormat:@"%@%d", name, i];
    [self setValue:aValue forKey:key];
}

回答3:

This sort of thing is best achieved with an array.

Similar question here: Objective C Equivalent of PHP's "Variable Variables"

回答4:

Create them in an NSMutableArray. Doesn't matter if all of them have the same object name, since they have different locations in the array. Just access them with [arrayName objectAtIndex:index]; Use a for.