使用 rangeOfString 過濾 NSArray 中的 NSString 對象

假如想要在NSArray中得到包含Nisekoi的NSString數據

思路:
聲明一組包含 Nisekoi 和 Plastic Memories 的 NSArray
從NSArray 中過濾出帶有 Nisekoi 的 NSString 對象

NSMutableArray *tasks = [[NSMutableArray alloc] init];
    
for (int i = 0 ; i<24; i++) {
    [tasks addObject:[NSString stringWithFormat:@Nisekoi %i,i+1]];
    [tasks addObject:[NSString stringWithFormat:@Plastic Memories %i,i+1]];
    
}

NSMutableArray *queryTasks = [[NSMutableArray alloc] init];
for (NSString *task in tasks) {
    //使用 rangeOfString 過濾
    NSRange r = [task rangeOfString:@Nisekoi
			    options:NSCaseInsensitiveSearch];
    if (r.location != NSNotFound) {
	[queryTasks addObject:task];
    }
}

for (NSString *t in queryTasks) {
    NSLog(@To do list -> %@,t);
}

其實沒必要這麼麻煩,直接一個NSMutableDictionary setObject:forKey: 設定好就可以了,過濾什麼的,0X23XD 喵。

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