public class Parser {  /**   * 將字符串text中由openToken和closeToken組成的占位符依次替換為args數組中的值   * @param openToken   * @param closeToken   * @param text   * @param args   * @return   */  public static String parse(String openToken, String closeToken, String text, Object... args) {    if (args == null || args.length <= 0) {      return text;    }    int argsIndex = 0;    if (text == null || text.isEmpty()) {      return "";    }    char[] src = text.toCharArray();    int offset = 0;    // search open token    int start = text.indexOf(openToken, offset);    if (start == -1) {      return text;    }    final StringBuilder builder = new StringBuilder();    StringBuilder expression = null;    while (start > -1) {      if (start > 0 && src[start - 1] == '//') {        // this open token is escaped. remove the backslash and continue.        builder.append(src, offset, start - offset - 1).append(openToken);        offset = start + openToken.length();      } else {        // found open token. let's search close token.        if (expression == null) {          expression = new StringBuilder();        } else {          expression.setLength(0);        }        builder.append(src, offset, start - offset);        offset = start + openToken.length();        int end = text.indexOf(closeToken, offset);        while (end > -1) {          if (end > offset && src[end - 1] == '//') {            // this close token is escaped. remove the backslash and continue.            expression.append(src, offset, end - offset - 1).append(closeToken);            offset = end + closeToken.length();            end = text.indexOf(closeToken, offset);          } else {            expression.append(src, offset, end - offset);            offset = end + closeToken.length();            break;          }        }        if (end == -1) {          // close token was not found.          builder.append(src, start, src.length - start);          offset = src.length;        } else {          ///////////////////////////////////////僅僅修改了該else分支下的個別行代碼////////////////////////          String value = (argsIndex <= args.length - 1) ?              (args[argsIndex] == null ? "" : args[argsIndex].toString()) : expression.toString();          builder.append(value);          offset = end + closeToken.length();          argsIndex++;          ////////////////////////////////////////////////////////////////////////////////////////////////        }      }      start = text.indexOf(openToken, offset);    }    if (offset < src.length) {      builder.append(src, offset, src.length - offset);    }    return builder.toString();  }  public static String parse0(String text, Object... args) {    return Parser.parse("${", "}", text, args);  }  public static String parse1(String text, Object... args) {    return Parser.parse("{", "}", text, args);  }  /**   * 使用示例   * @param args   */  public static void main(String... args) {    //{}被轉義，不會被替換    System.out.println(Parser.parse("{", "}", "我的名字是//{},結果是{}，可信度是%{}", "雷鋒", true, 100));    System.out.println(Parser.parse0("我的名字是${},結果是${}，可信度是%${}", "雷鋒", true, 100));    System.out.println(Parser.parse1("我的名字是{},結果是{}，可信度是%{}", "雷鋒", true, 100));//    輸出結果如下：//    我的名字是{},結果是true，可信度是%100//    我的名字是雷鋒,結果是true，可信度是%100//    我的名字是雷鋒,結果是true，可信度是%100  }}