NSString的多個URL字元串的分割和截取技巧

今天開發高德雲圖，傳回來的image是字元串組，不是Json，也不是字典，我的媽啊！你說的是真的！

preurl=(

        {

        "_id" = 54a358f2e4b053daeaf71fb7;

        "_preurl" = "http://img.yuntu.amap.com/54a358f2e4b053daeaf71fb7@!thumb";

        "_url" = "http://img.yuntu.amap.com/54a358f2e4b053daeaf71fb7@!orig";

    },

        {

        "_id" = 54a36713e4b053daeaf7213e;

        "_preurl" = "http://img.yuntu.amap.com/54a36713e4b053daeaf7213e@!thumb";

        "_url" = "http://img.yuntu.amap.com/54a36713e4b053daeaf7213e@!orig";

    },

        {

        "_id" = 54ab7e91e4b053daeaf7c7ea;

        "_preurl" = "http://img.yuntu.amap.com/54ab7e91e4b053daeaf7c7ea@!thumb";

        "_url" = "http://img.yuntu.amap.com/54ab7e91e4b053daeaf7c7ea@!orig";

    },

        {

        "_id" = 54ab7e97e4b053daeaf7c7ed;

        "_preurl" = "http://img.yuntu.amap.com/54ab7e97e4b053daeaf7c7ed@!thumb";

        "_url" = "http://img.yuntu.amap.com/54ab7e97e4b053daeaf7c7ed@!orig";

    },

        {

        "_id" = 54ab7e9de4b053daeaf7c7ef;

        "_preurl" = "http://img.yuntu.amap.com/54ab7e9de4b053daeaf7c7ef@!thumb";

        "_url" = "http://img.yuntu.amap.com/54ab7e9de4b053daeaf7c7ef@!orig";

    },

        {

        "_id" = 54ab7ea6e4b053daeaf7c7f1;

        "_preurl" = "http://img.yuntu.amap.com/54ab7ea6e4b053daeaf7c7f1@!thumb";

        "_url" = "http://img.yuntu.amap.com/54ab7ea6e4b053daeaf7c7f1@!orig";

    }

)  
           

我現在想要分割他們，并放到不同的數值或字典，直接上方法。【ps：我不知道有沒有更好的方法，還有這個方法的性能如何，唉，要學習的太多，我還得慢慢來，虛心吧！少年！】

//從資料中分段
        NSArray *arry=[imageStr componentsSeparatedByString:@"}"];
        
        for (int i = 0;i < arry.count -1;i++)
        {
            NSString * imageStrring = arry[i];
            //去掉是以換行
            //imageStr = [imageStr stringByReplacingOccurrencesOfString:@"\n" withString:@""];
            //去掉所有空格
            imageStr = [imageStr stringByReplacingOccurrencesOfString:@" " withString:@""];
            NSString * preurl = (NSString *) [[[[imageStrring componentsSeparatedByString:@"preurl\"=\""] objectAtIndex:1] componentsSeparatedByString:@"\";"] objectAtIndex:0];
            
            //NSLog(@"\n %@ \n",preurl);
            
            [self.thumbPhotosUrlArray addObject:preurl];
            
            NSString * url = (NSString *) [[[[imageStrring componentsSeparatedByString:@"_url\"=\""] objectAtIndex:1] componentsSeparatedByString:@"\";"] objectAtIndex:0];
            [self.origPhotosUrlArray addObject:url];
            
            //NSLog(@"\n %@ \n",url);
            
        }
        
           

有必要解釋一下嗎？

我的思路是，先以“｝”，分割字元串，得到的數組，在一個一個的截取～～

nice～