我创建了一个NSInputStream来从文件(IOS)加载内容:NSString*fileName=[[NSBundlemainBundle]pathForResource:@"resource"ofType:@".dat"];NSInputStream*dataStream=[NSInputStreaminputStreamWithFileAtPath:fileName];if(dataStream==nil){NSLog(@"loadassetfailed");return;}[dataStreamsetDelegate:self];[dataStreamscheduleInRu