webView加载HTML字符串计算动态高度

- (void)webViewDidFinishLoad:(UIWebView *)webView { //webview 自适应高度    CGRect frame = webView.frame;    CGSize fittingSize = [webView sizeThatFits:CGSizeZero];    frame.size = fittingSize;    webView.frame = frame;     //tableView reloadData}