使用UIWebView loadHtmlString的时候超宽图片会超出webview的宽度，网上查解决方案如下：
NSString *htmlString = [NSString stringWithFormat:@"<html> \n"
"<head> \n"
"<style type=\"text/css\"> \n"
"body {font-size:15px;}\n"
"</style> \n"
"</head> \n"
"<body>"
"<script type='text/javascript'>"
"window.onload = function(){\n"
"var $img = document.getElementsByTagName('img');\n"
"for(var p in $img){\n"
" $img[p].style.width = '100%%';\n"
"$img[p].style.height ='auto'\n"
"}\n"
"}"
"</script>%@"
"</body>"
"</html>",model.details];
// webView直接加载HTMLString
[self.webView loadHTMLString:htmlString baseURL:nil];
发现使用后超宽的图片确实变成自适应宽度了，可新的问题是原来的小图片被拉伸到与屏幕同宽，改为
NSString *htmlFormatter = @"<html> \n"
"<head> \n"
"<style type=\"text/css\"> \n"
"body {font-size:15px;}\n"
"img {max-width:100%%;height:auto;}\n"
"</style> \n"
"</head> \n"
"<body>"
"%@"
"</body>"
"</html>";
NSString *htmlString = [NSString stringWithFormat:htmlFormatter, self.data.detail];
[self.webView loadHTMLString:htmlString baseURL:nil];
问题完美解决
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