如何检查NSMutableArray中的字符串是否为EquorToString X？

Question

对不起,如果这是基本的,但我无法理解这一点.我有一个数组,想要遍历它中的每个对象,看看它是否是等于:@"某事".如果试过这个,但它会崩溃:

    for (int i = 0; i < ([myNSMutableArray count]); i++) {

    NSLog(@"i = %i", i);

    if ([[myNSMutableArray objectAtIndex:i] isEqualToString:@"something"]) {
        ...
    } else {
        ...
    }


}

我去拿:

    2011-07-14 13:38:40.983 MNs[21416:207] i = 0
2011-07-14 13:38:40.985 MNs[21416:207] -[__NSArrayM isEqualToString:]: unrecognized selector sent to instance 0x4c976f0
2011-07-14 13:38:40.987 MNs[21416:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM isEqualToString:]: unrecognized selector sent to instance 0x4c976f0'

任何帮助将非常感谢.提前致谢!

编辑:

对不起我忘记了.这就是我创建数组的方式:

NSMutableArray *myNSMutableArray = [[NSMutableArray alloc] init];

    for (int x = 0; x < 30; x++) {
        [myNSMutableArray addObject:@""];
        [myNSMutableArray addObject:@"something"];
        [myNSMutableArray addObject:@""];
    }

EDIT2:

很抱歉,问题是我试图复制一个可变阵列...所以你的所有答案都是正确的,我现在只需要选一个,我想.

Answer 1

试试这个,

for (int i = 0; i < ([myNSMutableArray count]); i++) {

    NSLog(@"i = %i", i);

NSString *stringToCheck = (NSString *)[myNSMutableArray objectAtIndex:i];

    if ([stringToCheck isEqualToString:@"something"]) {
        ...
    } else {
        ...
    }


}