diff --git a/src/component/LoginPage/verificationCodeInput.vue b/src/component/LoginPage/verificationCodeInput.vue
index 4d8b92b7..f28ecc77 100644
--- a/src/component/LoginPage/verificationCodeInput.vue
+++ b/src/component/LoginPage/verificationCodeInput.vue
@@ -42,8 +42,8 @@ export default defineComponent({
     cIndex() {
       this.resetCaret();
     },
-    lastCode(val) {
-      if (val) {
+    lastCode(newVal,oldVal) {
+		if (newVal && newVal != oldVal) {
         this.$refs.input[this.ctSize - 1].blur();
         this.sendCaptcha();
       }