# 組件源碼 ``` /** * <b>方法描述：</b> 減 <br/> * <b>創建者：</b> admin <br/> * <b>創建時間：</b> 2018-05-11 11:49:58 <br/> * * @param amt1 * 入參|被減數|{@link Object} * @param amt2 * 入參|減數|{@link Object} * @param amt3 * 出參|差|{@link java.lang.String} * @return 0 失敗<br/> * 1 成功<br/> */ @Component(label = "減", style = "判斷型", type = "同步組件", comment = "兩個金額數據相減，支持千分符輸入", version = "1.0.0", deprecated = false, author = "admin", date = "2018-05-11 11:49:58") @InParams(param = {@Param(name = "amt1", comment = "被減數", type = Object.class), @Param(name = "amt2", comment = "減數", type = Object.class)}) @OutParams(param = {@Param(name = "amt3", comment = "差", type = java.lang.String.class)}) @Returns(returns = {@Return(id = "0", desp = "失敗"), @Return(id = "1", desp = "成功")}) public static ResultBase P_subtract(Object amt1, Object amt2) { BigDecimal d1 = transform(amt1); BigDecimal d2 = transform(amt2); if (d1 != null && d2 != null) { return ResultBase.newSuccessResult(d1.subtract(d2).toString()); } return ResultBase.newFailureResult("TPTA0010", "輸入計算金額數據不是合法數據,輸入值1=" + amt1 + ",值2=" + amt2); } ``` # 交易中組件使用方式  # 參數說明及示例 ## 入口參數 被減數：輸入一個數值型參數，示例： `100` 減數：輸入一個數值型參數，示例： `50.36` ## 出口參數 差：兩個金額數據相減，示例： `__INNER__["result"]`