这是我正在尝试的代码:
NSData *imageData = [[NSData alloc]initWithData:UIImagePNGRepresentation(myImage.image)];
imageClass.imageString = [[NSString alloc]initWithData:imageData encoding:NSUTF8StringEncoding];
NSLog(@"String is :%@",imageClass.imageString); // getting NULL
获取字符串为:null