UIWebview打开doc,pdf 等文件

   UIWebView *webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 0,          self.view.frame.size.weight, self.view.frame.size.height)];

    webView.delegate = self;

    webView.multipleTouchEnabled = YES;

    webView.scalesPageToFit = YES;

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

    NSString *documentsDirectory = [paths objectAtIndex:0];

    NSString *docPath = [documentsDirectorystringByAppendingString:@"/zhengshu_1.doc"];

    NSLog(@"#######%@",docPath);

    

    NSURL *url = [NSURL fileURLWithPath:docPath];

    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    [webView loadRequest:request];

    [self.view addSubview:webView];