//找到Documents文件所在的路径
NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
//取得第一个Documents文件夹的路径
NSString *filePath = [path objectAtIndex:0];
NSString *plistPath = [filePath stringByAppendingPathComponent:@"collectionData.plist"];
//存入(沙盒)
[data writeToFile:plistPath atomically:YES];
//读取(沙盒)
NSArray *arr1 = [NSArray arrayWithContentsOfFile:plistPath];
NSLog(@"%@",plistPath);
NSLog(@"%@",arr1);
NSString *bundlePath = [[NSBundle mainBundle]pathForResource:@"collectionData" ofType:@"plist"];
NSLog(@"%@",bundlePath);
//读取(Bundle)
NSArray *arr2 = [NSArray arrayWithContentsOfFile:bundlePath];
NSLog(@"---------%ld",arr2.count);