code: public static void init(String sensitiveWords, char separator, boolean isAsync){
  		if(StrUtil.isNotBlank(sensitiveWords)){
  			init(StrUtil.split(sensitiveWords, separator), isAsync);
  		}
  	}
docs: 初始化敏感词树
  @param sensitiveWords 敏感词列表组成的字符串
  @param isAsync 是否异步初始化
  @param separator 分隔符