UILabel* label = [[UILabelalloc]initWithFrame:self.view.bounds];

label.numberOfLines=0;

[self.viewaddSubview:label];

NSString* htmlString =@"

这是一个段落

";

NSAttributedString* attrStr = [[NSAttributedStringalloc]initWithData:[htmlStringdataUsingEncoding:NSUnicodeStringEncoding]options:@{NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType}documentAttributes:nilerror:nil];

label.attributedText= attrStr;