西安有一种儿童玩的黑泥哨,当地人叫作“泥叫叫”。看起来并不显眼,总共才四、五公分高,可是很有意思。由于价廉物美,便于携带,我去西安时,总要带几个回来,自留以外还分赠同好,受者都很赞赏。有一次我送了两个给一位外国画家,他一看,竟然把哨子使劲一吻欢呼起来。有人问我,这种小黑哨到底有啥好?这一问,一下子倒把我问住了,逼着我思考一番。现在我讲一点情况,谈一点看法,作为“抛砖引玉”如何? Xi’an has a black play whistle for children, locals called “mud screaming.” It does not look conspicuous, a total of only four or five centimeters high, but very interesting. Because of cheap, easy to carry, when I went to Xi’an, always bring a few back, apart from giving away gifts are the same, the recipients are very appreciated. Once I gave two to a foreign artist, he glanced at him with a whistle. Someone asked me, what kind of black whistle in the end? This asked, suddenly asked me to live, forcing me to think about it. Now, let me talk a little about the situation and talk about it as a valuable guide.