杰克是美国爱达荷州一名软件公司的员工,为了养育6个孩子,杰克又找了兼职。尽管辛苦,但给孩子们讲一则故事成了每晚睡觉前雷打不动的课程。这天晚饭时,妻子说起她买菜的经历:“现在真方便,买水果、猪肉,手机一扫就能查到产地和日期。”杰克突然产生一个念头:“能不能利用二维码设计一 Jack is a software company in Idaho, the United States employees, in order to raise six children, Jack and find part-time. Despite the hard work, telling a story to the children became unshakeable every night before going to bed. At dinner, my wife talked about her experience of buying food: ”Now it is really convenient to buy fruit, pork, phone can sweep away to find the origin and date. “ Jack suddenly came up with the idea: ”can not use two One dimension code design