diff --git a/src/pages/course/compenents/create.tsx b/src/pages/course/compenents/create.tsx
index 07ce256..c0d1dce 100644
--- a/src/pages/course/compenents/create.tsx
+++ b/src/pages/course/compenents/create.tsx
@@ -695,7 +695,7 @@ export const CourseCreate: React.FC<PropInterface> = ({
                           form.setFieldsValue({ thumb: url });
                         }}
                       ></UploadImageButton>
-                      <span className="helper-text ml-16">
+                      <span className="helper-text ml-8">
                         （推荐尺寸:400x300px）
                       </span>
                     </div>
diff --git a/src/pages/course/compenents/update.tsx b/src/pages/course/compenents/update.tsx
index 33cc846..485d47c 100644
--- a/src/pages/course/compenents/update.tsx
+++ b/src/pages/course/compenents/update.tsx
@@ -96,8 +96,8 @@ export const CourseUpdate: React.FC<PropInterface> = ({
         type: type,
         short_desc: res.data.course.short_desc,
         hasChapter: chapterType,
-        published_at: res.data.published_at
-          ? dayjs(res.data.published_at, "YYYY-MM-DD HH:mm:ss")
+        published_at: res.data.course.published_at
+          ? dayjs(res.data.course.published_at, "YYYY-MM-DD HH:mm:ss")
           : "",
       });
       setType(type);
@@ -188,6 +188,10 @@ export const CourseUpdate: React.FC<PropInterface> = ({
     setType(e.target.value);
   };
 
+  const disabledDate = (current: any) => {
+    return current && current >= moment().add(0, "days"); // 选择时间要大于等于当前天。若今天不能被选择，去掉等号即可。
+  };
+
   return (
     <>
       {open ? (
@@ -388,7 +392,7 @@ export const CourseUpdate: React.FC<PropInterface> = ({
                           form.setFieldsValue({ thumb: url });
                         }}
                       ></UploadImageButton>
-                      <span className="helper-text ml-16">
+                      <span className="helper-text ml-8">
                         （推荐尺寸:400x300px）
                       </span>
                     </div>
@@ -403,22 +407,19 @@ export const CourseUpdate: React.FC<PropInterface> = ({
                   maxLength={200}
                 />
               </Form.Item>
-              <Form.Item label="上架时间" required={true}>
+              <Form.Item label="上架时间">
                 <Space align="baseline" style={{ height: 32 }}>
-                  <Form.Item
-                    name="published_at"
-                    rules={[{ required: true, message: "请选择上架时间!" }]}
-                  >
+                  <Form.Item name="published_at">
                     <DatePicker
+                    disabledDate={disabledDate}
                       format="YYYY-MM-DD HH:mm:ss"
                       style={{ width: 240 }}
                       showTime
                       placeholder="请选择上架时间"
                     />
                   </Form.Item>
-
-                  <div className="helper-text ml-24">
-                    上架时间越晚，排序越靠前
+                  <div className="helper-text">
+                    （上架时间越晚，排序越靠前）
                   </div>
                 </Space>
               </Form.Item>
diff --git a/src/pages/course/index.tsx b/src/pages/course/index.tsx
index 3d433da..42e103c 100644
--- a/src/pages/course/index.tsx
+++ b/src/pages/course/index.tsx
@@ -200,8 +200,8 @@ const CoursePage = () => {
       ),
     },
     {
-      title: "创建时间",
-      dataIndex: "created_at",
+      title: "上架时间",
+      dataIndex: "published_at",
       render: (text: string) => <span>{dateFormat(text)}</span>,
     },
     {