获取html到NSString
NSURL *url = [NSURL URLWithString:@"http://www.xtox.net/product/detail.action?product.id=11"];
NSString *strHtml = [NSString stringWithContentsOfURL:url encoding:NSUTF8StringEncoding error:nil];
显示到UIWebView
[self.m_web loadHTMLString:strHtml baseURL:nil];
/显示到UITextView
[self.m_TextView setContentToHTMLString:strHtml];