feat: 添加新增教练功能

src/mock/coach.js

@@ -56,3 +56,14 @@ export const rejoin = (id) => {
     const target = list.find(item => item.id === id)
     target.quitDate = null
 }
+
+
+// 新增教练
+export const add = (coach) => {
+    const newCoach = {
+        id: list.length === 0 ? 1 : list[list.length -1].id + 1,
+        ...coach,
+        quitDate: null
+    }
+    list.push(newCoach)
+}