增加 pptx类型

src/components/payment/Confirmorder.vue

@@ -104,6 +104,8 @@ export default {
       switch (type) {
         case "ppt":
           return "ppt";
+        case "pptx":
+          return "ppt";
         case "pdf":
           return "pdf";
         case "xlsx":

src/components/payment/Payment.vue

@@ -117,6 +117,8 @@ export default {
       switch (type) {
         case "ppt":
           return "ppt";
+        case "pptx":
+          return "ppt";
         case "pdf":
           return "pdf";
         case "xlsx":

src/components/teacher-dev/Teaching.vue

@@ -77,6 +77,8 @@ export default {
       switch (type) {
         case "ppt":
           return "ppt";
+        case "pptx":
+          return "ppt";
         case "pdf":
           return "pdf";
         case "xlsx":

src/components/teacher-dev/Textbook.vue

@@ -73,6 +73,8 @@ export default {
       switch (type) {
         case "ppt":
           return "ppt";
+        case "pptx":
+          return "ppt";
         case "pdf":
           return "pdf";
         case "xlsx":