TextView加载带有html标签的字符串

UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(50, 100, 260, 200)];

NSString *param = @"
This is
a para
graph with line breaks
";

NSAttributedString *attributedString = [[NSAttributedStringalloc] initWithData:[param dataUsingEncoding:NSUnicodeStringEncoding] options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType}documentAttributes:nilerror:nil];

textView.attributedText = attributedString;

[self.view addSubview:textView];