diff --git a/src/modules/tpm/challengesnew/tpm-md-editor.js b/src/modules/tpm/challengesnew/tpm-md-editor.js
index 014e19423..f41cd5e77 100644
--- a/src/modules/tpm/challengesnew/tpm-md-editor.js
+++ b/src/modules/tpm/challengesnew/tpm-md-editor.js
@@ -75,7 +75,7 @@ function md_elocalStorage(editor, mdu, id) {
 }
 
 
-export default ({ mdID, onChange, onCMBeforeChange, onCMBlur, error = false, className = '', noStorage = false, imageExpand = true, placeholder = '', width = '100%', height = 400, initValue = '', emoji, watch, showNullButton = false, showResizeBar = false, startInit = true }) => {
+export default ({ mdID, onChange, onCMBeforeChange, onCMBlur, error = false, className = '', noStorage = false, imageExpand = true, placeholder = '', width = '100%', height = 400, initValue = '', emoji, watch, showNullButton = false, showResizeBar = false, startInit = true , forMember}) => {
 
   const editorEl = useRef();
   const resizeBarEl = useRef();
@@ -194,6 +194,15 @@ export default ({ mdID, onChange, onCMBeforeChange, onCMBlur, error = false, cla
       }
       if (onChange) {
         editorInstance.cm.on('change', (cm) => {
+          if(forMember){
+            document.onkeydown = (e) => {
+              if (e.key === "@") {
+                // 输入@键后在对应的位置显示可选的项目成员
+                console.log("e",document.selectionStart);
+                console.log("e",document.getSelection());
+              }
+            };
+          }
           onChange(cm.getValue())
         })
       }