solve bugs on presentR

sourcecode/h5app/vue/src/views/PresentRegister.vue

@@ -113,7 +113,7 @@
                 tag: 0,
                 photo: null,
                 loading: false,
-                imgUrl : "",
+                imgUrl: "http://pjczv6ygf.bkt.clouddn.com/camera.png",
                 giftDo: {}
             }
         },
@@ -260,7 +260,7 @@
                     return;
                 }
                 else if (this.presentName.length === 0) {
-                    Toast.fail('请填写手机号');
+                    Toast.fail('请填写礼物名称');
                     this.pnError = true;
                     this.loading = false;
                     return;