计子勋不知是何郡县人，大家都说他几百岁了，在人世间往来。一天他忽然说中午自己当死，主人给他一件葛衣（粗布衣服），计子勋穿上之后正寝仰面而卧，到达中午果然死了。
延伸阅读
[编]
参考资料
- 《后汉书》列传第七十二 方术列传
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