feat(member): 添加学员取消请假接口并实现取消请假功能

- 新增 delAskForLeave 方法用于学员取消请假申请
- 在学员端时间表页面实现取消请假功能- 修改 askForLeave 方法的注释为"学员发送请假申请"

api/member.js

@@ -100,7 +100,7 @@ export default {
 	},
 
 
-	//发送请假申请
+	//学员发送请假申请
 	askForLeave(data) {
 		let url = '/member/ask_for_leave'
 		return http.post(url, data).then(res => {
@@ -108,6 +108,15 @@ export default {
 		})
 	},
 
+	//学员取消请假申请
+	delAskForLeave(data) {
+		let url = '/member/del_ask_for_leave'
+		return http.post(url, data).then(res => {
+			return res;
+		})
+	},
+
+
 	//获取课时列表
 	studentsSignList(data) {
 		let url = '/member/students_sign_list'

pages/student/timetable/info.vue

@@ -200,15 +200,11 @@ export default {
         return
       }
 
-      uni.showToast({
-        title: '需要取消请假接口',
-        icon: 'none'
-      })
-      return
-
       //取消请假
+      this.leaveFormData.reason = ''//请假原因
       let data = {...this.leaveFormData}
-      let res = await memberApi.askForLeave(data)
+      let res = await memberApi.delAskForLeave(data)
+      this.cancelLeaveShow = false
       if(res.code != 1){
         uni.showToast({
           title: res.msg,