时光匆匆,转眼间张先生离去我们已经17年了,今年又是张先生诞辰100周年,《现代物理知识》编辑部希望我能为纪念张先生写点东西。于是,我重新查阅了我二十多年前对张先生多次访谈的纪 Time haste, Mr. Zhang has left us for 17 years, and this year marks the 100th anniversary of Mr. Zhang. The editorial department of “Modern Physical Knowledge” hopes I can write something for Mr. Zhang. As a result, I revisited the article on my interviews with Mr. Zhang more than 20 years ago