fix(price): 配置为整数时小数位显示问题修复 #659 (#665)

* fix: 配置为整数时小数位显示问题修复 #659
Co-authored-by: Njingfubo <jingfubo@jd.com>

src/packages/__VUE/price/index.taro.vue

@@ -98,7 +98,7 @@ export default create({
             ? 0
             : decimalNum.split('.')[1];
       } else {
-        decimalNum = decimalNum.toString();
+        decimalNum = 0;
       }
       const result = '0.' + decimalNum;
       const resultFixed = Number(result).toFixed(props.decimalDigits);

src/packages/__VUE/price/index.vue

@@ -88,7 +88,7 @@ export default create({
             ? 0
             : decimalNum.split('.')[1];
       } else {
-        decimalNum = decimalNum.toString();
+        decimalNum = 0;
       }
       const result = '0.' + decimalNum;
       const resultFixed = Number(result).toFixed(props.decimalDigits);