IE插件被阻止
<p>If can’t install the IE-plugin, choose “Prompt” on IE--Tools--Internet options--Security--Custom level--ActiveX controls and plugins--"Download unsigned ActiveX controls" and "Initialize and script ActiveX controls not marked as safe for scripting".Click “OK” to save.</p>
<p><img src="https://www.showdoc.cc/server/api/common/visitfile/sign/5d2d750752a6cbbe3b5817cc8e238dad?showdoc=.jpg" alt="" /></p>