订单优惠申请页面，1、旧运费和旧清关费取值不正确；2、新清关费默认值不为空，给了一个旧清关费在这里；3、币种和价格单位控件，可以修改但显示成了灰化样式

http://zentao.jdshangmen.com/bug-view-320.html

src/views/ecw/order/special/discount.vue

@@ -35,7 +35,7 @@
              </el-input>
            </el-form-item>
            <el-form-item label="新运费" required style="width: 400px">
-             <el-input v-model="form.freight" type="number">
+             <el-input v-model="form.freight" type="number" class="input-with-select">
                <el-select v-model="form.freightCurrency" placeholder="请选择" slot="prepend" style="width: 100px">
                  <el-option
                    v-for="item in currencyList"
@@ -55,7 +55,7 @@
              </el-input>
            </el-form-item>
            <el-form-item label="新清关费" required style="width: 400px">
-             <el-input v-model="form.clearanceFreight" type="number">
+             <el-input v-model="form.clearanceFreight" type="number" class="input-with-select">
                <el-select v-model="form.clearanceFreightCurrency" placeholder="请选择" slot="prepend" style="width: 100px">
                  <el-option
                    v-for="item in currencyList"
@@ -286,6 +286,10 @@ export default {
 }
 </script>
 
-<style scoped>
-
+<style scoped lang="scss">
+::v-deep .input-with-select {
+  .el-input-group__prepend, .el-input-group__append {
+    background-color: #fff;
+  }
+}
 </style>