ios 读取文件有两种方法

下面以读取TCFexam.db为例

// ---- 方法一 从document里读取 ----------//

//    NSArray* paths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory ,  NSUserDomainMask ,  YES );

//    NSString* documentPath = [ paths objectAtIndex: 0 ];

//    NSString* dbPath = [ documentPath stringByAppendingPathComponent: @"TCFexam.db" ];

    // ---- 方法二 从 资源 里读取 ----------//

    NSString* dbPathTwo = [ [ NSBundle mainBundle ] pathForResource:@"TCFexam" ofType: @"db" ];

    NSLog( @"two %@" , dbPathTwo );