微信下单对账单，最后一行统计数据String值问题 #862
Description
微信下单对账单，返回WxPayBillResult实例，最后的统计数据的String 值，都会多一个空格。"totalRecord":"28 ","totalFee":"0.79 ","totalRefundFee":"0.00 ","totalCouponFee":"0.00 ","totalPoundageFee":"0.00000 "
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微信下单对账单，返回WxPayBillResult实例，最后的统计数据的String 值，都会多一个空格。"totalRecord":"28 ","totalFee":"0.79 ","totalRefundFee":"0.00 ","totalCouponFee":"0.00 ","totalPoundageFee":"0.00000 "