二期：BUG修复

src/renderer/src/views/tool/sphere.vue

@@ -109,7 +109,7 @@ const sideMouse = e => {
   mouseChange(type == 'mouseleave')
 }
 // 侧边工具栏: 操作变化
-const sideChange = o => {
+const sideChange = async o => {
   // console.log(o)
   switch(o.prop) {
     case 'resource': // 资源
@@ -120,7 +120,7 @@ const sideChange = o => {
       break
     case 'over':     // 下课
       toolStore.isToolWin = false
-      endClass(route.query.reservId)
+      await endClass(route.query.reservId)
       ipcMsgSend('tool-sphere:close')
       break
   }