update

src/views/Student/index.vue

@@ -1257,6 +1257,34 @@ const handleHomeworkSubmit = async () => {
                 throw new Error('无法创建canvas上下文')
               }
             }
+
+            // 将base64字符串转换为File对象
+            const base64ToFile = (base64String: string, filename: string): File => {
+              const arr = base64String.split(',')
+              const mime = arr[0].match(/:(.*?);/)?.[1] || 'image/png'
+              const bstr = atob(arr[1])
+              let n = bstr.length
+              const u8arr = new Uint8Array(n)
+              while (n--) {
+                u8arr[n] = bstr.charCodeAt(n)
+              }
+              return new File([u8arr], filename, { type: mime })
+            }
+          
+            const imageFile = base64ToFile(imageData, `screenshot_${Date.now()}.png`)
+            const imageUrl = await uploadFile(imageFile)
+            // 提交截图
+            await submitWork(slideIndex.value, '73', imageUrl, '1') // 73表示截图工具，21表示图片类型
+            message.success('页面截图提交成功')
+            hasSubmitWork = true
+          
+            // 发送作业提交成功的socket消息
+            sendMessage({
+              type: 'homework_submitted',
+              courseid: props.courseid,
+              slideIndex: slideIndex.value,
+              userid: props.userid
+            })
           }
         }
         catch (error) {