diff --git a/src/main.js b/src/main.js
index c36d285..3a18d49 100644
--- a/src/main.js
+++ b/src/main.js
@@ -83,19 +83,18 @@ Vue.directive('no-whitespace', {
     const input = el.querySelector('input') || el.querySelector('textarea');
     if (!input) return;
 
-    input.addEventListener('input', (event) => {
+    const handleInput = (event) => {
       const value = event.target.value.trim();
-      if (value === '') {
+      if (value === '' || value.replace(/\s/g, '') === '') {
+        //设置event.target.value的值为undefined，为了触发v-model的更新
+        input.removeEventListener('input', handleInput);
         event.target.value = '';
+        input.dispatchEvent(new Event('input'));
+        input.addEventListener('input', handleInput);
       }
-    });
-
-    input.addEventListener('blur', (event) => {
-      const value = event.target.value.trim();
-      if (value === '') {
-        event.target.value = '';
-      }
-    });
+    };
+    input.addEventListener('input', handleInput);
+    input.addEventListener('blur', handleInput);
   }
 });