diff --git a/pages/print/bluetoothPrinter.vue b/pages/print/bluetoothPrinter.vue
index 355f476..cdb3ec1 100644
--- a/pages/print/bluetoothPrinter.vue
+++ b/pages/print/bluetoothPrinter.vue
@@ -16,12 +16,13 @@
 					<view class="">
 						<view class="pt-10 pb-10">连接信息</view>
 						<u-steps activeColor="#969799" :current="curTab" direction="column" dot="true">
-							<u-steps-item v-for="(item, index) in conInfos" @click="changeTab(index)">
+							
+							<u-steps-item v-for="(item, index) in conInfos">
 								<template v-slot:title>
-									<view :class="`${index == curTab ? 'clr-prm' : 'clr-sub'} pl-20`">{{item.title}}</view>
+									<view @click="changeTab(index)" :class="`${index == curTab ? 'clr-prm' : 'clr-sub'} pl-20`">{{item.title}}</view>
 								</template>
 								<template v-slot:desc>
-									<view class="mt-10 pl-20">{{item.desc}}</view>
+									<view @click="changeTab(index)" class="mt-10 pl-20">{{item.desc}}</view>
 								</template>
 							</u-steps-item>
 						</u-steps>
@@ -306,8 +307,9 @@ export default {
 				showToast(errmsg)
 				return 
 			}
+			let pic_res
 			try{
-				let pic_res = await this.renderPic();
+				pic_res = await this.renderPic();
 				showToast('图片获取成功')
 			}catch(e){
 				showToast('图片获取失败')
@@ -362,7 +364,6 @@ export default {
 				hideLoading()
 				showToast('打印成功')
 			}catch(e){
-				hideLoading()
 				console.log('打印异常', e)
 			}
 		},
@@ -376,9 +377,6 @@ export default {
 				const delay = 20;
 				for (let i = 0, j = 0, length = buffer.byteLength; i < length; i += maxChunk, j++) {
 					let subPackage = buffer.slice(i, i + maxChunk <= length ? (i + maxChunk) : length);
-					await new Promise((resolve)=> {
-						setTimeout(resolve, j * delay)
-					})
 					try{
 						await _this.printbuff(subPackage)
 					}catch(msg){