[textView setContentToHTMLString:txtStr];
<html>
<head>
</head>
<body>
<img src = "http://t1.baidu.com/it/u=1075557596,3331641536&fm=15&gp=0.jpg">
这是文字
<br/><br/>
</body>
</html>
[textView setContentToHTMLString:txtStr];
<html>
<head>
</head>
<body>
<img src = "http://t1.baidu.com/it/u=1075557596,3331641536&fm=15&gp=0.jpg">
这是文字
<br/><br/>
</body>
</html>