价格处理方法修改

src/components/teacher-dev/Teaching.vue

@@ -92,7 +92,7 @@ export default {
       }
     },
     changePrice(price, fontSize1, fontSize2) {
-      price = price ? price : "0";
+      price = price ? price : 0;
       price = price.toFixed(2);
       price = price.toString();
       let arr = price.split(".");

src/components/teacher-dev/Textbook.vue

@@ -89,7 +89,7 @@ export default {
     },
     // 处理价格
     changePrice(price, fontSize1, fontSize2) {
-      price = price ? price : "0";
+      price = price ? price : 0;
       price = price.toFixed(2);
       price = price.toString();
       let arr = price.split(".");

src/components/teacher-dev/ToolBook.vue

@@ -89,7 +89,7 @@ export default {
     },
     // 处理价格
     changePrice(price, fontSize1, fontSize2) {
-      price = price ? price : "0";
+      price = price ? price : 0;
       price = price.toFixed(2);
       price = price.toString();
       let arr = price.split(".");

src/views/teacher-dev/Preview.vue

@@ -174,7 +174,7 @@ export default {
     },
     // 处理价格
     changePrice(price, fontSize1, fontSize2) {
-      price = price ? price : "0";
+      price = price ? price : 0;
       price = price.toFixed(2);
       price = price.toString();
       let arr = price.split(".");