# 組件源碼 ``` /** * @category 字符串長度 * @param instr * 入參|輸入字符串|{@link java.lang.String} * @param length * 出參|長度(字符數)|int * @return 1 成功<br/> */ @InParams(param = { @Param(name = "instr", comment = "輸入字符串", type = java.lang.String.class) }) @OutParams(param = { @Param(name = "length", comment = "長度(字符數)", type = int.class) }) @Returns(returns = { @Return(id = "1", desp = "成功") }) @Component(label = "統計字符數", style = "處理型", type = "同步組件", comment = "字符串長度（字符數）", version = "1.0.0", deprecated = false, author = "test", date = "2018-01-22 04:31:09") public static ResultBase P_charLength(String instr) { return ResultBase.newSuccessResult(instr == null ? 0 : instr.length()); } ``` # 交易中組件使用方式  # 參數說明及示例 ## 入口參數 輸入字符串：輸入一串字符串，示例： `"asdasfgfhgfh"` ## 出口參數 長度(字符數)：返回字符串長度，示例： `__INNER__["result"]`