如何在NSArray中查找字符串？

NSArray *array = @[@"apple", @"banana", @"orange"];
NSString *stringToFind = @"banana";
NSUInteger index = [array indexOfObject:stringToFind];
if (index != NSNotFound) {
    NSLog(@"字符串 %@ 在数组中的索引为 %lu", stringToFind, (unsigned long)index);
} else {
    NSLog(@"字符串 %@ 不在数组中", stringToFind);
}

NSArray *array = @[@"apple", @"banana", @"orange"];
NSString *stringToFind = @"banana";
if ([array containsObject:stringToFind]) {
    NSLog(@"数组中包含字符串 %@", stringToFind);
} else {
    NSLog(@"数组中不包含字符串 %@", stringToFind);
}

NSArray *array = @[@"apple", @"banana", @"orange"];
NSString *stringToFind = @"banana";
NSUInteger index = [array indexOfObjectIdenticalTo:stringToFind];
if (index != NSNotFound) {
    NSLog(@"字符串 %@ 在数组中的索引为 %lu", stringToFind, (unsigned long)index);
} else {
    NSLog(@"字符串 %@ 不在数组中", stringToFind);
}

NSArray *array = @[@"apple", @"banana", @"orange"];
NSUInteger index = [array indexOfObjectPassingTest:^BOOL(NSString * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
    return [obj hasPrefix:@"ba"];
}];
if (index != NSNotFound) {
    NSLog(@"符合条件的字符串在数组中的索引为 %lu", (unsigned long)index);
} else {
    NSLog(@"数组中没有符合条件的字符串");
}