检查名称的NSMutableArray是否有多个字符的前缀

NSMutableArray *array = [NSMutableArray arrayWithObjects:@"apple", @"banana", @"cat", nil];
NSString *prefix = @"ba";
BOOL hasMultipleCharacterPrefix = NO;

for (NSString *element in array) {
    if ([element hasPrefix:prefix] && element.length > prefix.length) {
        hasMultipleCharacterPrefix = YES;
        break;
    }
}

if (hasMultipleCharacterPrefix) {
    NSLog(@"NSMutableArray中存在多个字符的前缀");
} else {
    NSLog(@"NSMutableArray中不存在多个字符的前缀");
}

NSMutableArray *array = [NSMutableArray arrayWithObjects:@"apple", @"banana", @"cat", nil];
NSString *prefix = @"ba";
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF BEGINSWITH %@ AND length > %lu", prefix, prefix.length];
NSArray *filteredArray = [array filteredArrayUsingPredicate:predicate];

if (filteredArray.count > 0) {
    NSLog(@"NSMutableArray中存在多个字符的前缀");
} else {
    NSLog(@"NSMutableArray中不存在多个字符的前缀");
}