直接上代码

for (int i = 0; i < array.count; i++) {
        NSString *datails = array[i];
        NSMutableArray *valueArr = [NSMutableArray array];
        [valueArr addObjectsFromArray:array];
        [valueArr removeObjectAtIndex:i];
        if ([valueArr containsObject:datails]) {
            [JXAlert alertWithText:[NSString stringWithFormat:@"%@重复了",datails]];
            return;
        }
    }