处理输入框首次校验问题

packages/input/src/input.vue

@@ -138,9 +138,7 @@
         hovering: false,
         focused: false,
         isComposing: false,
-        passwordVisible: false,
-        focusTimer: null,
-        focusOpen: false
+        passwordVisible: false
       };
     },
 
@@ -191,6 +189,10 @@
         type: Boolean,
         default: false
       },
+      lazy: {
+        type: [Boolean, Object],
+        default: false
+      },
       tabindex: String
     },
 
@@ -305,6 +307,9 @@
         };
       },
       handleBlur(event) {
+        if (this.lazy) {
+          this.handleInput(event, true);
+        }
         this.focused = false;
         this.$emit('blur', event);
         if (this.validateEvent) {
@@ -356,22 +361,20 @@
           this.handleInput(event);
         }
       },
-      handleInput(event) {
+      handleInput(event, refresh) {
         // should not emit input during composition
         // see: https://github.com/ElemeFE/element/issues/10516
-        if (this.isComposing) return;
+        if (this.isComposing || (this.lazy && !refresh)) return;
 
         // hack for https://github.com/ElemeFE/element/issues/8548
         // should remove the following line when we don't support IE
         if (event.target.value === this.nativeInputValue) return;
 
-        clearTimeout(this.focusTimer);
-        this.focusTimer = setTimeout(() => {
-          this.$emit('input', event.target.value);
-          // ensure native input value is controlled
-          // see: https://github.com/ElemeFE/element/issues/12850
-          this.$nextTick(this.setNativeInputValue);
-        }, 300);
+        this.$emit('input', event.target.value);
+
+        // ensure native input value is controlled
+        // see: https://github.com/ElemeFE/element/issues/12850
+        this.$nextTick(this.setNativeInputValue);
       },
       handleChange(event) {
         this.$emit('change', event.target.value);