方法一：
1 - (void)webViewDidFinishLoad:(UIWebView *)webView
2 {
3 // finished loading, hide the activity indicator in the status bar
4 [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
5 [self.guideWebView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= ’150%’"];
6 }
方法二：
[NSString stringWithFormat:@"<html> \n"
"<head> \n"
"<style type=\"text/css\"> \n"
"body {font-family: \"%@\"; font-size: %f; color: %@;}\n"
"</style> \n"
"</head> \n"
"<body>%@</body> \n"
"</html>", @"宋体", fontSize,fontColor,stringValue] ;
改变字体颜色
NSString *jsString = [[NSString alloc] initWithFormat:@"document.body.style.fontSize=%f;document.body.style.color=%@",fontSize,fontColor]; [webView stringByEvaluatingJavaScriptFromString:jsString]; [jsString release];
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