这是我昨天提的问题的  改了一下 一 pc端双圆环clip绘图，里面的图不是圆的 二 draw的回调必须写成(()=>{})()立即执行格式，不然不执行，这个你们的文档没有体现 三 draw的回调里的切图如果不延时就会出现空白图  加了一秒延时就会正常出现 ，这个你们虽然说了，写在回调里会好些 ，但是 实际还是要有个延时才能正常 三种情况在代码片段里改一改都能体现 请看到回复一下

一下报三十个错 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::event_bindings:8: Uncaught Natives disabled{<stack trace unavailable>} :60946/appservice/appservice?load:1 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::binding:5: Uncaught TypeError: Cannot read property 'Event' of undefined{TypeError: Cannot read property 'Event' of undefined     at extensions::binding:5:38     at extensions::webViewInternal:7:5     at extensions::webViewAttributes:10:23} :60946/appservice/appservice?load:1 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::webViewInternal:7: Uncaught TypeError: Cannot read property 'Binding' of undefined{TypeError: Cannot read property 'Binding' of undefined     at extensions::webViewInternal:7:23     at extensions::webViewAttributes:10:23} VM16623 extensions::webViewAttributes:10 Uncaught TypeError: Cannot read property 'WebViewInternal' of undefined     at VM16623 extensions::webViewAttributes:10 (anonymous) @ VM16623 extensions::webViewAttributes:10 :60946/appservice/appservice?load:1 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::guestViewContainer:8: Uncaught Natives disabled{<stack trace unavailable>} VM16618 extensions::extensionView:7 Uncaught TypeError: Cannot read property 'GuestViewContainer' of undefined     at VM16618 extensions::extensionView:7 (anonymous) @ VM16618 extensions::extensionView:7 :60946/appservice/appservice?load:1 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::event_bindings:8: Uncaught Natives disabled{<stack trace unavailable>} :60946/appservice/appservice?load:1 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::binding:5: Uncaught TypeError: Cannot read property 'Event' of undefined{TypeError: Cannot read property 'Event' of undefined     at extensions::binding:5:38     at extensions::chromeWebViewInternal:5:15     at extensions::chromeWebView:8:21} :60946/appservice/appservice?load:1 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::chromeWebViewInternal:5: Uncaught TypeError: Cannot read property 'Binding' of undefined{TypeError: Cannot read property 'Binding' of undefined     at extensions::chromeWebViewInternal:5:33     at extensions::chromeWebView:8:21} VM16624 extensions::chromeWebView:8 Uncaught TypeError: Cannot read property 'ChromeWebView' of undefined     at VM16624 extensions::chromeWebView:8 (anonymous) @ VM16624 extensions::chromeWebView:8 :60946/appservice/appservice?load:1 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::event_bindings:8: Uncaught Natives disabled{<stack trace unavailable>} :60946/appservice/appservice?load:1 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::binding:5: Uncaught TypeError: Cannot read property 'Event' of undefined{TypeError: Cannot read property 'Event' of undefined     at extensions::binding:5:38     at extensions::extensionViewInternal:7:5     at extensions::extensionViewAttributes:12:5} :60946/appservice/appservice?load:1 (CONTENT_SCRIPT context for ikhdnebglabgeplgnhnjgldiemdflddf) extensions::extensionViewInternal:7: Uncaught TypeError: Cannot read property 'Binding' of undefined{TypeError: Cannot read property 'Binding' of undefined     at extensions::extensionViewInternal:7:23     at extensions::extensionViewAttributes:12:5} VM16620 extensions::extensionViewAttributes:12 Uncaught TypeError: Cannot read property 'ExtensionViewInternal' of undefined     at VM16620 extensions::extensionViewAttributes:12 (anonymous) @ VM16620 extensions::extensionViewAttributes:12 VM16617 extensions::extensionOptionsAttributes:40 Uncaught TypeError: Cannot read property 'prototype' of undefined     at VM16617 extensions::extensionOptionsAttributes:40