Add: comments on handlePressEnter

src/components/Editor/index.js

@@ -296,19 +296,11 @@ class Editor extends React.Component {
     return true;
   }
 
-  // allowInput = true;
-  // handleKeyDownWhenAllowEnter = e => {
-  //   const { allowEnter } = this.props;
-  //   // enter
-  //   if(allowEnter && e.keyCode === 13) {
-  //     // e.stopPropagation();
-  //     // return false;
-  //   }
-  //   // console.log("ee =>", e, typeof e.keyCode, e.ctrlKey);
-  // };
-
   /**
-   *
+   *  **处理Enter事件**
+   *  1. `allowEnter` & `onPressEnter`同时有效时才能触发
+   *  2. `e.preventDefault`为了防止enter事件后仍触发换行
+   *  3. enter事件开启，仍可以用`shift + enter`触发换行
    *  -- evo 20200222
    */
   handlePressEnter = e => {