<iframe frameborder="0" id="botIframe" "this.height=this.contentWindow.document.body.scrollHeight" scrolling="no" src="" name="formality"></iframe>
加上 “this.height=this.contentWindow.document.body.scrollHeight”``
<iframe frameborder="0" id="botIframe" "this.height=this.contentWindow.document.body.scrollHeight" scrolling="no" src="" name="formality"></iframe>
加上 “this.height=this.contentWindow.document.body.scrollHeight”``