flag=1 while flag: flag=sum([flag for k in range(10)if k])我觉得你不理解的地方应该是这行代码 flag=sum([flag for k in range(10)if k]) 这行代码可以分解成如下代码 flag_l**t=[] for k in range(10): if k flag_l**t.append(flag) flag=sum(...
区别是grab指的是夺取或抓住;抢夺,霸占;匆匆拿走。grab for指的是试图抓住,后面加具体事务。例句辨析:grab1、i managed to grab her hand. 我抓到了她的手。2、he was clumsily trying to grab at alfred's arms. 他笨手笨脚地想抓住艾尔弗雷德的手臂。3、grab that waiter, mary ann....
be beneficial for是错误的。be beneficial to 读音:英[bi ˌbenɪˈfɪʃl tu]美[bi ˌbenɪˈfɪʃl tu] 释义:有益于。语法:be beneficial to是固定搭配,beneficial的基本意思是“有益的,有利的”,可指有利于财政方面的富足,更常指有利于精神或身体健康。例句: i hope your holiday...