# 組件源碼 ``` /** * <b>方法描述：</b> 字符串拼接 <br/> * <b>創建者：</b> admin <br/> * <b>創建時間：</b> 2018-04-25 15:51:00 <br/> * * @param target * 入參|目標字符串|{@link java.lang.String} * @param appendStr * 入參|追加字符串|{@link java.lang.String} * @param newStr * 出參|新字符串|{@link java.lang.String} * @return 0 失敗<br/> * 1 成功<br/> */ @Component(label = "字符串拼接", style = "判斷型", type = "同步組件", comment = "將追加字符串拼接到目標字符的尾部,目標字符串為空，返回追加字符串", version = "1.0.0", deprecated = false, author = "admin", date = "2018-04-25 03:51:00") @InParams(param = { @Param(name = "target", comment = "目標字符串", type = java.lang.String.class), @Param(name = "appendStr", comment = "追加字符串", type = java.lang.String.class) }) @OutParams(param = { @Param(name = "newStr", comment = "新字符串", type = java.lang.String.class) }) @Returns(returns = { @Return(id = "0", desp = "失敗"), @Return(id = "1", desp = "成功") }) public static ResultBase P_append(String target, String appendStr) { if (StringUtil.isEmpty(target)) return ResultBase.newSuccessResult(appendStr); StringBuilder builder = new StringBuilder(target); builder.append(appendStr); return ResultBase.newSuccessResult(builder.toString()); } ``` # 交易中組件使用方式  # 參數說明及示例 ## 入口參數 目標字符串：輸入一串字符串：示例： `"你好"` 追加字符串輸入一串字符串：示例： `"世界"` ## 出口參數 新字符串：拼接后的字符串，示例： `__INNER__["result"]`