提醒爬虫使用大图

application/views/mobile_first/ch-pc.php

@@ -9,6 +9,7 @@
     <meta name="apple-mobile-web-app-title" content="China Highlights - Since 1998!">
     <meta name="keywords" content="<!--@KEYWORDS@-->">
     <meta name="description" content="<!--@DESCRIPTION@-->">
+    <meta name="robots" content="max-image-preview:large">
     <!--@OG:IMAGE@-->
     <link rel="canonical" href="<!--@CANONICAL@-->">
     <link rel="shortcut icon" href="/favicon.ico">

application/views/mobile_first/ch.php

@@ -7,6 +7,7 @@
     <meta name="description" content="<!--@DESCRIPTION@-->">
     <link rel="canonical" href="<!--@CANONICAL@-->">
     <meta content="width=device-width,minimum-scale=1,initial-scale=1" name="viewport">
+    <meta name="robots" content="max-image-preview:large">
     <!--@OG:IMAGE@-->
     <link rel="shortcut icon" href="//data.chinahighlights.com/favicon.ico">
     <!--@MAIN-CSS@-->