加载本地html带有参数
NSString *htmlPath = [[NSBundle mainBundle] pathForResource:@"views/index" ofType:@"html"];
//加载本地html带有参数
NSURL *url = [NSURL URLWithString:@"?lang=en"relativeToURL:[NSURL fileURLWithPath:htmlPath]];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[webView loadRequest:request];