update：更新

src/components/layout-element/login/app-login-button/app-login-button.vue

 <template>
     <div :class="curClassName" :style="curStyle">
-        <i-button @click="handleClick" :disabled="disabled" :title="curTooltip" :type="buttonType">
+        <i-button @click="handleClick" :disabled="disabled" :title="tooltip" :type="buttonType">
             <div :class="['button-content', iconAlign.toLowerCase()]">
                 <span v-if="cssClass || imagePath" class="icon">
                     <i v-if="cssClass" :class="cssClass" />
                     <img v-else :src="imagePath" />
                 </span>
-                <span v-if="showCaption" class="caption">{{ curCaption }}</span>
+                <span v-if="showCaption" class="caption">{{ caption }}</span>
             </div>
         </i-button>
     </div>
@@ -27,20 +27,26 @@ export default class AppLoginButton extends Vue {
     @Prop() public name!: string;
 
     /**
-     * 模型
+     * 显示提示
      *
-     * @type {any}
      * @memberof AppLoginButton
      */
-    @Prop() public layoutModelDetails: any;
+    @Prop() public tooltip?: string;
 
     /**
-     * 类型
+     * 标题
      *
-     * @type {string}
      * @memberof AppLoginButton
      */
-    @Prop() public defaultStyle?: string;
+    @Prop() public caption?: string;
+
+    /**
+     * 模型
+     *
+     * @type {any}
+     * @memberof AppLoginButton
+     */
+    @Prop() public layoutModelDetails: any;
 
     /**
      * 加载状态
@@ -67,30 +73,6 @@ export default class AppLoginButton extends Vue {
         return this.index ? `${this.name}_${this.index}` : this.name;
     }
 
-    /**
-     * 标题
-     *
-     * @memberof AppLoginButton
-     */
-    get curCaption() {
-        const layoutModel = this.layoutModelDetails[this.itemName];
-        if (layoutModel) {
-            return layoutModel.caption;
-        }
-    }
-
-    /**
-     * 提示信息
-     *
-     * @memberof AppLoginButton
-     */
-    get curTooltip() {
-        const layoutModel = this.layoutModelDetails[this.itemName];
-        if (layoutModel) {
-            return layoutModel.tooltip;
-        }
-    }
-
     /**
      * 显示标题
      *