code: private String getReplaceChars(String replaceChar,int length){
  		String resultReplace = replaceChar;
  		for(int i = 1 ; i < length ; i++){
  			resultReplace += replaceChar;
  		}
  		
  		return resultReplace;
  	}
docs: 获取替换字符串
  @param replaceChar
  @param length
  @return
  @version 1.0