diff --git a/src/utils/validate.js b/src/utils/validate.js
index 31a9ebb..9010a2e 100644
--- a/src/utils/validate.js
+++ b/src/utils/validate.js
@@ -3,8 +3,10 @@
  */
 
 export function isvalidUsername(str) {
-  const valid_map = ['xianfuxing', 'editor']
-  return valid_map.indexOf(str.trim()) >= 0
+  // const valid_map = ['xianfuxing', 'editor']
+  // return valid_map.indexOf(str.trim()) >= 0
+  const usernameRegex = /^(?![0-9]+$)[0-9A-Za-z]{4,}$/
+  return usernameRegex.test(str)
 }
 
 /* 合法uri*/