bug fix and performance improvements

miniprogram/miniprogram_npm/tdesign-miniprogram/tree-select/tree-select.wxml

@@ -0,0 +1,81 @@
+<wxs module="_" src="../common/utils.wxs" />
+<wxs module="this" src="./index.wxs" />
+
+<view class="{{classPrefix}} class" style="{{_._style(['height:' + _.addUnit(height) , style, customStyle])}}">
+  <scroll-view
+    scroll-y
+    enhanced
+    show-scrollbar="{{false}}"
+    class="{{_.cls(classPrefix + '__column', [this.getTreeClass(leafLevel - level, treeOptions.length)])}} {{prefix}}-class"
+    wx:for="{{treeOptions}}"
+    wx:key="level"
+    wx:for-index="level"
+  >
+    <t-side-bar
+      wx:if="{{level == 0}}"
+      value="{{value[level]}}"
+      bind:change="onRootChange"
+      t-class="{{classPrefix}}-column {{prefix}}-class-left-column"
+    >
+      <t-side-bar-item
+        wx:for="{{treeOptions[level]}}"
+        wx:key="index"
+        label="{{item.label}}"
+        value="{{item.value}}"
+        t-class="{{prefix}}-class-left-item"
+      />
+    </t-side-bar>
+    <block wx:elif="{{level != leafLevel}}">
+      <view
+        wx:for="{{treeOptions[level]}}"
+        wx:key="value"
+        bind:tap="handleTreeClick"
+        data-level="{{level}}"
+        data-value="{{item.value}}"
+        class="{{_.cls(classPrefix + '__item', [['active', item.value === value[level]]])}} {{prefix}}-class-middle-item"
+      >
+        {{item.label}}
+      </view>
+    </block>
+    <t-radio-group
+      wx:elif="{{!multiple}}"
+      class="{{classPrefix}}__radio {{prefix}}-class-right-column"
+      data-level="{{level}}"
+      value="{{value[level]}}"
+      bind:change="handleRadioChange"
+    >
+      <t-radio
+        wx:for="{{treeOptions[level]}}"
+        wx:key="value"
+        icon="line"
+        class="{{classPrefix}}__radio-item {{prefix}}-class-right-item"
+        t-class-label="{{prefix}}-class-right-item-label"
+        value="{{item.value}}"
+        maxLabelRow="{{1}}"
+        borderless
+        placement="right"
+        >{{item.label}}</t-radio
+      >
+    </t-radio-group>
+    <t-checkbox-group
+      wx:else
+      class="{{classPrefix}}__checkbox {{prefix}}-class-right-column"
+      value="{{value[level]}}"
+      bind:change="handleRadioChange"
+      data-level="{{level}}"
+    >
+      <t-checkbox
+        wx:for="{{treeOptions[level]}}"
+        wx:key="value"
+        placement="right"
+        icon="line"
+        maxLabelRow="{{1}}"
+        class="{{prefix}}-class-right-item"
+        t-class-label="{{prefix}}-class-right-item-label"
+        borderless
+        value="{{item.value}}"
+        >{{item.label}}</t-checkbox
+      >
+    </t-checkbox-group>
+  </scroll-view>
+</view>