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src/main.js

@@ -226,3 +226,14 @@ Vue.directive("input-limit", {
     })
   }
 })
+Vue.directive('Alphabet', {
+  inserted: function (el) {
+      const input = el.querySelector('.el-input__inner');
+      input.onkeyup = function (e) {
+        input.value = input.value.replace(/[^A-Za-z0-9]/g,'')
+      }
+      input.onblur = function (e) {
+        input.value = input.value.replace(/[^A-Za-z0-9]/g,'')
+      }
+    }
+});