章照止先生是老一辈数学家,然而,在数学圈子以外,他的名字并不太响亮,因为他的研究方向带有一丝神秘。上世纪60年代和70年代,国际上一致认为,中国有一个神秘的人物,在他的面前,设计多么巧妙的密码都如同草芥。他们把他叫做“中国的眼睛”。中美建交的时候,双方曾经互赠礼物。美国赠送给中国的,是日本“宝船” Mr. Zhang Zhaozhi is an old-time mathematician. However, beyond the mathematical circle, his name is not very loud, because his research direction has a hint of mystery. In the 1960s and 1970s, internationally, it was agreed that China has a mysterious figure. In front of him, how clever passwords are designed is like a mustard. They called him “China’s eyes”. When the two countries established diplomatic relations, the two sides exchanged gifts. The American gift to China is Japan’s “Treasure Ship”