【文章內(nèi)容簡介】 以將dir *.bat p文件中僅存在一個回車符, ” “ 是將命令產(chǎn)生的輸出重新定向,比如到文件或打印機中.產(chǎn)生的內(nèi)容將追加進文件中,則將原文件內(nèi)容覆蓋.” type prn null p 可將p文件刪除掉copy con p 可以在屏幕上編輯p文件,F6可以存盤退出 type ppp 完成p文件到pp 的復(fù)制 type p|more 可在屏滿時暫停顯示二十六、move 命令move [y/y] filename1 filename2 將文件1移動到文件2處 如:move c:dos*.* c:cced 將dos子目錄下的所有文件全部移動到cced 子目錄下 /y|y參數(shù)在目標目錄不存在需要創(chuàng)建時,是否出現(xiàn)提示 可以使用該命令修改子目錄名稱,如 move dos cced 將dos目錄名改為cced 二十七、append 指定一些特殊數(shù)據(jù)文件的存放位置, *.exe *. *.bat 文件格式:append [:]終止以前存在的指定目錄 append 顯示指定情況 append [path] append c:user 等二十八、call 在一個批處理命令中調(diào)用另外一個批處理文件(1)不終止現(xiàn)有文件的運行,執(zhí)行完掉用程序后立即返回.(2)被調(diào)用批處理命令必須以bat 為擴展名(3)調(diào)用批處理文件時,可以加上參數(shù)(%1%9)以及環(huán)境變量如%baud%(4)不能使用管道工具及重定向工具二十九、device devicehigh loadhigh device 將指定的設(shè)備驅(qū)動程序裝入內(nèi)存中 devicehigh將指定的設(shè)備驅(qū)動程序裝入高端內(nèi)存中 loadhigh 將指定的設(shè)備驅(qū)動程序裝入高端內(nèi)存中三十、defrag 優(yōu)化磁盤legend(傳奇)optimize(優(yōu)化)elapse(逝去)fragment(碎片)該命令執(zhí)行對指定的盤進行優(yōu)化處理(包括檢查文件分配表,各文件狀態(tài),糾正錯 誤),在執(zhí)行時,可按照文件名大小,時間,擴展名對文件進行排序.第二篇：英語作文：網(wǎng)上購物的利與弊With the development of the Internet and the popularization of puters, shopping on the Internet has bee a monplace in our consumers can buy almost everything they need.第三篇：英語作文：網(wǎng)上購物的利與弊With the development of the Internet and the popularization of puters, shopping on the Internet has bee a monplace in our consumers can buy almost everything they on the Internet has a lot of advantages, of which the most important is perhaps its don39。t have to waste a lot of their energy and precious time to go from one shop to another to choose the modities they is especially desirable to the old, the sick and the busy people who cannot go to the shops in goods e in all shapes, sizes and colors on the they need to do is to sit in front of their puters and click the modities they order will be delivered to them , shopping on the Internet also has its first disadvantage is that the consumers can39。t see the goods or try them on , the real goods may not be the same as what they have seen on the second disadvantage is that some shops on the Internet are not will never deliver anything to you after they get the money from cheated, you will find that you have nowhere to go to current society, shopping on the Interent is being more and more has many advantages and : shopping on the Internet is convient and faster for can stay at home looking for the items, they need or like through the Internet which supplies a variety of needn39。t to go shopping in it can reduce cars39。 amount on the it also can reduce pollution of the 39。s unpollutionand reduce :customers can buy false will be demaged and have many bussniss also we shopping on the Internet shouid notice the we should avoid the false production on the ,there is a heat debate about online shopping is good or has his own me, I would love to buying things from are lots of advantages of online ,you can enjoy the convenience of online shopping:surf the internet and order your things ,you can search as much information as you can which normal couldn39。t 39。s more, lots of people love to pursue the fashion and then they choose online there is another voice:“The virtual is dishonest,it is not safe to do business throu