Alert add banner prop

Alert add banner prop

src/components/alert/alert.vue

@@ -36,7 +36,11 @@
             showIcon: {
                 type: Boolean,
                 default: false
-            }
+            },
+            banner: {
+                type: Boolean,
+                default: false
+            },
         },
         data () {
             return {
@@ -51,7 +55,8 @@
                     `${prefixCls}-${this.type}`,
                     {
                         [`${prefixCls}-with-icon`]: this.showIcon,
-                        [`${prefixCls}-with-desc`]: this.desc
+                        [`${prefixCls}-with-desc`]: this.desc,
+                        [`${prefixCls}-with-banner`]: this.banner
                     }
                 ];
             },

src/styles/components/alert.less

@@ -94,4 +94,8 @@
         margin-top: -21px;
         font-size: 28px;
     }
+
+    &-with-banner{
+        border-radius: 0;
+    }
 }

test/routers/alert.vue

@@ -1,7 +1,7 @@
 <template>
-    <Alert show-icon>消息提示文案</Alert>
+    <Alert show-icon banner closable>消息提示文案</Alert>
     <Alert type="success" show-icon>成功提示文案</Alert>
-    <Alert type="warning" show-icon>警告提示文案</Alert>
+    <Alert type="warning" show-icon banner>警告提示文案</Alert>
     <Alert type="error" show-icon>错误提示文案</Alert>
     <Alert show-icon>
         消息提示文案