diff --git a/components/page-title/page-title.vue b/components/page-title/page-title.vue
index 6283a16..abef1cf 100644
--- a/components/page-title/page-title.vue
+++ b/components/page-title/page-title.vue
@@ -1,130 +1,135 @@
 <template>
-	<view class="top" :class="[sticky ? 'sticky': '']">
-		<view v-show="showBack" class="top-back" @click="toBack()">
-<!--			<u-icon color="#333" size="20" name="arrow-left"></u-icon>-->
+  <view class="top" :class="[sticky ? 'sticky': '']">
+    <view v-show="showBack" class="top-back" @click="toBack()">
+      <!--			<u-icon color="#333" size="20" name="arrow-left"></u-icon>-->
       <
-		</view>
-		<view class="top-title"><slot></slot></view>
-		<view @click="topgae()" style="color: #387DF7;">
-			<slot name="right"></slot>
-		</view>
-	</view>
+    </view>
+    <view class="top-title">
+      <slot></slot>
+    </view>
+    <view @click="topgae()" style="color: #387DF7;">
+      <slot name="right"></slot>
+    </view>
+  </view>
 </template>
 
 <script>
-	export default {
-		props:{
-			backUrl:{
-				type:String,
-				default:''
-			},
-			showBack:{
-				type:Boolean,
-				default:false
-			},
-			goPgae:{
-				type:String,
-				default:''
-			},
-      // 启用粘性滚动
-      sticky: {
-        type: Boolean,
-        default: false
+export default {
+  props: {
+    backUrl: {
+      type: String,
+      default: ''
+    },
+    showBack: {
+      type: Boolean,
+      default: false
+    },
+    goPgae: {
+      type: String,
+      default: ''
+    },
+    // 启用粘性滚动
+    sticky: {
+      type: Boolean,
+      default: false
+    }
+  },
+  data() {
+    return {}
+  },
+  methods: {
+    topgae() {
+      if (this.goPgae != '') {
+        uni.navigateTo({
+          url: this.goPgae
+        });
       }
-		},
-		data() {
-			return {
-
-			}
-		},
-		methods: {
-			topgae() {
-				if(this.goPgae!=''){
-					uni.navigateTo({
-						url:this.goPgae
-					});
-				}
-			},
-			toBack(){
-        // 如果定义的有 go 事件，优先处理这个
-        if( this.$listeners['go'] ) {
-          this.$emit('go')
-          return
+    },
+    toBack() {
+      // 如果定义的有 go 事件，优先处理这个
+      if (this.$listeners['go']) {
+        this.$emit('go')
+        return
+      }
+      if (this.backUrl != '') {
+        if (this.backUrl == '/pages/my/index') {
+          uni.switchTab({
+            url: this.backUrl
+          })
+        } else {
+          uni.navigateTo({
+            url: this.backUrl
+          });
         }
-				if(this.backUrl!=''){
-					if(this.backUrl == '/pages/my/index'){
-						uni.switchTab({
-							url:this.backUrl
-						})
-					}else{
-						uni.navigateTo({
-							url:this.backUrl
-						});
-					}
-				}else{
-					let pages =getCurrentPages();
-					//console.log(pages);
-					const prevPage=pages[pages.length-2];
-					if(!prevPage){
-						uni.switchTab({
-							url:'/pages/index/index'
-						})
-					}else{
-						uni.navigateBack();
-					}
-				}
-			}
-		}
-	}
+      } else {
+        let pages = getCurrentPages();
+        //console.log(pages);
+        const prevPage = pages[pages.length - 2];
+        if (!prevPage) {
+          uni.switchTab({
+            url: '/pages/index/index'
+          })
+        } else {
+          uni.navigateBack();
+        }
+      }
+    }
+  }
+}
 </script>
 
 <style lang="scss" scoped>
-	.top{
-		height: 40px;
-		background-color: #fff;
-		display: flex;
-    align-items: center;
-		// justify-content: space-between;
-		.top-back{
-			color: #333;
-			//padding-top:10px;
-			height: 40px;
-			line-height: 40px;
-			padding-left: 15px;
-		}
-		.top-title{
-			text-align: center;
-			font-size: 16px;
-			font-weight: 550;
-			color: #333;
-			height: 40px;
-			text-align: center;
-			width: 80%;
-			white-space: nowrap;
-			overflow: hidden;
-			text-overflow: ellipsis;
-			line-height: 40px;
-		}
+.top {
+  height: 40px;
+  background-color: #fff;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  position: relative;
 
-    &.sticky {
-      position: sticky;
-      top: 0;
-      //防止其他元素遮盖
-      z-index: 99;
-    }
-	}
-	 // .arrow:before {
-	 //    content: " ";
-	 //    display: inline-block;
-	 //    -webkit-transform: rotate(45deg);
-	 //    -ms-transform: rotate(45deg);
-	 //    transform: rotate(45deg);
-	 //    height: .5rem;
-	 //    width: .5rem;
-	 //    border-width: 0 0 2px 2px;
-	 //    border-color: #FFFFFF;
-	 //    border-style: solid;
-	 //    position: relative;
-	 //    top: 0
-	 //    }
+  .top-back {
+    color: #333;
+    //padding-top:10px;
+    height: 40px;
+    line-height: 40px;
+    padding-left: 15px;
+  }
+
+  .top-title {
+    width: 100%;
+    text-align: center;
+    position: absolute;
+    font-size: 16px;
+    font-weight: 550;
+    color: #333;
+    height: 40px;
+
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    line-height: 40px;
+  }
+
+  &.sticky {
+    position: sticky;
+    top: 0;
+    //防止其他元素遮盖
+    z-index: 99;
+  }
+}
+
+// .arrow:before {
+//    content: " ";
+//    display: inline-block;
+//    -webkit-transform: rotate(45deg);
+//    -ms-transform: rotate(45deg);
+//    transform: rotate(45deg);
+//    height: .5rem;
+//    width: .5rem;
+//    border-width: 0 0 2px 2px;
+//    border-color: #FFFFFF;
+//    border-style: solid;
+//    position: relative;
+//    top: 0
+//    }
 </style>