完成账单用电初始版本（未联调）

components/timePicker/index.wxml

@@ -0,0 +1,44 @@
+<!--components/timePicker/index.wxml-->
+<van-popup 
+  show="{{ show }}" 
+  position="bottom"
+  bind:close="onClose"
+>
+
+  <van-datetime-picker
+    bind:confirm="onConfirm"
+    bind:cancel="onCancel"
+    wx:if="{{ type === 'day' }}"
+    type="date"
+    value="{{ day }}"
+    min-date="{{ minDate }}"
+    max-date="{{ maxDate }}"
+    bind:input="onInput"
+    formatter="{{formatter}}"
+    title="日期"
+  />
+  <van-datetime-picker
+    bind:confirm="onConfirm"
+    bind:cancel="onCancel"
+    wx:if="{{ type === 'month' }}"
+    value="{{ month }}"
+    type="year-month"
+    value="{{ currentDate }}"
+    min-date="{{ minDate }}"
+    max-date="{{ maxDate }}"
+    bind:input="onInput"
+    formatter="{{formatter}}"
+    title="月份"
+  />
+  <van-picker  
+    bind:confirm="onConfirm"
+    bind:cancel="onCancel"
+    wx:if="{{ type === 'year' }}" 
+    columns="{{ years }}" 
+    bind:change="onChange" 
+    title="年份"
+    show-toolbar="{{true}}"
+    cancel-button-text="取消"
+    confirm-button-text="确定"
+  />
+</van-popup>