code: public CharSequence escape(CharSequence cs) {
          StringBuilder sb = new StringBuilder();
          boolean find;
          for (int i = 0; i < cs.length(); i++) {
              char c = cs.charAt(i);
              find = false;
              for (int x = 0; x < chars.length; x++) {
                  if (c == chars[x]) {
                      sb.append(escapes[x]);
                      find = true;
                      break;
                  }
              }
              if (!find)
                  sb.append(c);
          }
          return sb;
      }
docs: 根据逃逸的设置，对传入的字符串进行逃逸
  
  @param cs
  字符序列
  @return 逃逸后的字符序列