功能

實(shí)現(xiàn)像more分頁(yè)的功能

• 技巧：注意本段代碼的if那段寫法
• read方法會(huì)一次性將文件的內(nèi)容讀入內(nèi)存

def more(text, line=10):
    lines = text.splitlines()
    while lines:
        page = lines[:line]
        lines = lines[line:]
        for row in page:
            print(row)
        if lines and input(r'More? "N" or "n" for quit!') in ('N','n'):break

if __name__ == '__main__':
    import sys
    text = open(sys.argv[1],encoding="utf8").read()
    more(text, 15)