//自适应文字的高度    - (void)webViewDidFinishLoad:(UIWebView *)webView    {          NSString *height_str= [webView stringByEvaluatingJavaScriptFromString: @"document.body.offsetHeight"];        int height = [height_str intValue];        webView.frame = CGRectMake(0,titleLabel.frame.origin.y+titleLabel.frame.size.height+5,SCREEN_WIDTH-20,height+30);        timeLabel.frame=CGRectMake(20, webView.frame.origin.y+webView.frame.size.height+5, SCREEN_WIDTH-10-10, 20);        background.frame = CGRectMake(10, 20, SCREEN_WIDTH-20, timeLabel.frame.origin.y+timeLabel.frame.size.height+5);        NSLog(@"height: %@", [webView stringByEvaluatingJavaScriptFromString: @"document.body.offsetHeight"]);    }