载入本地Html文件

  NSString * resousePath = [[NSBundle mainBundle]resourcePath];
        NSString * filePath = [resousePath stringByAppendingPathComponent:@"patient_agreement.html"];
        NSString * htmlString = [[NSString alloc]initWithContentsOfFile:filePath encoding:NSUTF8StringEncoding error:nil];
        [self.web loadHTMLString:htmlString  baseURL:nil];
     //   [self.web loadHTMLString:htmlString baseURL:[NSURL fileURLWithPath:[[NSBundle mainBundle]bundlePath]]];