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瑁呭乏涓鏃buntu
鍒犻櫎 grub
dos涓?nbsp; fdisk /mbr
linux 鍒嗗尯鐨勫ぇ灝?/p>
swap 1024 mb
/
/home 1024 mb ext3
/boot 300 mb
濡傛灉璁$畻鍣ㄧ▼搴忔槸涓涓懡浠よ紼嬪簭錛岄偅涔堝畬鍏ㄥ彲浠ヨ姹傜敤鎴峰厛杈撳叆絎竴涓搷浣滄ゼ錛屽悗杈撳叆涓涓繍綆楃錛屽湪杈撳叆絎簩涓搷浣滄暟錛岄殢鍚庣▼搴忓氨鍙互緇欏嚭緇撴灉浜嗐?
鐒惰屽浜庝竴涓猈indows搴旂敤紼嬪簭錛岀敤鎴鋒槸涓涓敭涓涓敭鍦拌緭鍏ユ暟鎹紝紼嬪簭鍦ㄦ帴鍒頒竴涓敭杈撳叆浠ュ悗錛屾牴鎹繖涓敭鏄粈涔堟潵鍐沖畾鑷繁鐨勪笅涓鍔ㄤ綔銆傝繖鏍鳳紝紼嬪簭鐨勮涓哄氨鍙互鐢ㄤ竴涓?#8220;鐘舵佹満”鏉ヨ〃杈俱?
鐘舵佹満鏄綆楁満涓父鐢ㄥ埌鐨勫垎鏋愬伐鍏鳳紝瀹冨彲浠ヨ〃杈炬垚涓涓▼搴忓湪榪愯鏃訛紝濡備綍鏍規嵁杈撳叆鏉ュ湪涓嶅悓鐨勭姸鎬佷箣闂磋漿鎹€?nbsp;
鐘舵佽漿鎹?
鎿嶄綔鏁頒竴鍒濆涓?,濡傛灉寮濮嬭緭鍏ョ殑絎竴涓搷浣滄暟鐨勭涓涓敭鏄搷浣滅,涔嬪悗灝變細鎺ュ彈絎簩涓搷浣滄暟銆?
鎺ュ彈絎竴涓搷浣滄暟瀛愮姸鎬?
鎺ュ彈絎簩涓搷浣滄暟瀛愮姸鎬?
鍦ㄧ▼搴忓疄鐜頒腑錛屼嬌鐢ㄤ竴涓猙oolean鍙橀噺 bNumBegins鏉ュ垽鏂槸鍚﹀鍦ㄦ帴鍙楃涓涓暟瀛楃殑鐘舵併?
If(bNumBegins)
{
iCurrent = I;
bNumBegins = false;
}
Else
{
//瑕佹眰媯鏌ヨ繍綆楁孩鍑虹殑鎯呭喌
Checkd{
iCurrent = (iCurrent * 10 ) +I;
}
}
鑰屽垽鏂湪鎺ュ彈絎竴涓繕鏄浜屼釜鎿嶄綔鏁扮姸鎬佺殑鏂規硶錛屽垯鏄湅鍓嶄竴涓繍綆楃 -----濡傛灉鍓嶄竴涓繍綆楃鏄?= 錛屽垯鐜板湪鎺ュ彈鐨勬槸絎竴涓搷浣滄暟錛屽惁鍒欐槸絎簩涓搷浣滄暟銆?
璁$畻鐨勬柟娉曪細
Switch(jOperator)
{
Case ‘+’ :
Checked{ iResult = iNum1 + iCurrent;}
Break;
Case ‘-’ :
Checked{ iResult = iNum1 - iCurrent;}
Break;
Case ‘*’ :
Checked{ iResult = iNum1 * iCurrent;}
Break;
Case ‘/’ :
Checked{ iResult = iNum1 / iCurrent;}
Break;
Default: // ‘=’
iResult = iCurrent;
break;
}
/////////////////////////////////////////////////////////////////////////
浠ヤ笂鏄鍒版湰瀛愪釜璁頒笅鐨勪竴浜涚湅涔︾殑絎旇錛岀▼搴忔槸涓浜涚墖鏂絾灝芥樉浜嗘暣涓璁°?br /> 浠ヤ笅鍒欐槸鑷繁鎯崇殑錛岃嚜宸辨兂鍑虹殑紼嬪簭鍜屼漢瀹剁殑榪樻槸鏈変竴孌佃窛紱匯?/p>
1. 鍏堝垽鏂槸鏁板瓧榪樻槸鎿嶄綔絎︼紝鍐嶅垽鏂墍澶勭姸鎬侊紝鍐嶈窡鎹笉鍚岀殑鐘舵佹湁涓嶅悓鐨勬搷浣?
Int Num1 = 0;
Int Num2 = 0;
Int ResultNum = 0;
Int CurrentNum = 0;
Boolean IsNum1 = true;
Boolean NumBegin = true;
Switch (key) //杈撳叆瀛楃
{
Case 鏁板瓧:
If(IsNum1)
{
If(NumBegin)
{
Num1 = key;
CurrentNum = Num;
NumBegin = false;
Println(CurrentNum); //鎵撳嵃
}
Else
{
Num1 = Num1+10 + key;
CurrentNum = Num1;
Println(CurrentNum); //鎵撳嵃
}
}
Else
{
If(NumBegin)
{
Num2 = key;
CurrentNum = Num;
NumBegin = false;
Println(CurrentNum); //鎵撳嵃
}
Else
{
Num2 = Num1+10 + key;
CurrentNum = Num2;
Println(CurrentNum); //鎵撳嵃
}
}
Case (榪愮畻絎?
+:
If(IsNum1)
{
IsNum1 = false; //鍙樼姸鎬?br />
Println(CurrentNum); //鎵撳嵃
}
Else
{
ResultNum = Num1 + Num 2;
CurrentNum = ResultNum;
IsNum1 = false; //鍙樼姸鎬?br />
Println(CurrentNum); //鎵撳嵃
}
- , * , / , ……
= “
If(IsNum1)
{
IsNum1 = false; //鍙樼姸鎬?br />
Println(CurrentNum); //鎵撳嵃
//榪欓噷涓嶅お娓呮鍏蜂綋瑕佹庝箞鏍鳳紝灝辮嚜宸卞畾榪欐牱
}
Else
{
ResultNum = Num1 + Num 2;
CurrentNum = ResultNum;
IsNum1 = false; //鍙樼姸鎬?br />
Println(CurrentNum); //鎵撳嵃
}
}
2. 鍏堝垽鏂姸鎬侊紝鍐嶅垽鏂緭鍏ユ槸鏁板瓧榪樻槸鎿嶄綔絎?br /> 浠g爜搴旇鍚屼笂闈㈠樊涓嶅;
3. 璁懼畾鍏蜂綋鐘舵佺殑鍊鹼紝涔嬪悗鍦ㄤ竴涓柟娉曚腑璺熸嵁涓嶅悓鐨勫弬鏁板煎仛涓嶅悓鐨勪簨
濡傦細鎺ュ彈絎竴鎿嶄綔鏁癬_鎺ュ彈絎竴涓暟瀛?nbsp; = 1
鎺ュ彈絎竴鎿嶄綔鏁癬_鎺ュ彈鍏朵綑鐨勬暟瀛?nbsp; = 2
鎺ュ彈絎簩鎿嶄綔鏁癬_鎺ュ彈絎竴涓暟瀛?nbsp; = 3
鎺ュ彈絎簩鎿嶄綔鏁癬_鎺ュ彈絎簩涓暟瀛?nbsp; = 4
鏈枃鏉ヨ嚜CSDN鍗氬錛岃漿杞借鏍囨槑鍑哄錛歨ttp://blog.csdn.net/ap0406708/archive/2009/03/19/4004322.aspx
鍦║nix鎿嶄綔緋葷粺涓紝鍑犱箮浠諱綍涓滆タ(紓佺洏錛岀敤鎴風粓绔紝緗戠粶榪炴帴)閮藉彲浠ョ敤涓涓枃浠舵弿榪扮鏉ヨ〃紺猴紝榪欑緇熶竴鎬т嬌寰桿nix紼嬪簭鍛樺彲浠ュ啓鍑鴻澶囨棤鍏崇殑搴旂敤紼嬪簭銆?/p>
Socket涔熸槸涓涓枃浠舵弿榪扮錛屽彧涓嶈繃榪欎釜鏂囦歡鎻忚堪絎﹁〃紺虹殑鏄綉緇滐紝搴旂敤紼嬪簭瀵逛簬榪欎釜鎻忚堪絎︾殑璇誨啓灝辨槸瀵圭綉緇滄暟鎹殑璇誨啓銆?/p>
鍦ㄥ緩绔嬩竴涓猄ocket鐨勬椂鍊欙紝鍙互鎶婂畠緇戝畾鍒頒竴涓綉緇滃湴鍧涓婄殑涓涓鍙o紝涓鏃︾粦瀹氭垚鍔燂紝搴旂敤紼嬪簭灝卞彲浠ョ敤榪欎釜Socket鏉ヤ紶閫佸拰鎺ユ敹鏁版嵁浜嗐?/p>
搴旂敤紼嬪簭鍙互閫夋嫨鐢═CP榪樻槸UDP榪炴帴錛孴CP鍙潬寤虹珛榪炴帴錛孶DP涓嶅彲闈犱笉寤鴻繛鎺ャ?/p>
2.1 闈㈠悜榪炴帴鐨勫鎺ュ瓧鐨勭郴緇熻皟鐢ㄦ椂搴忓浘
2.2 鏃犺繛鎺ュ崗璁殑濂楁帴瀛楄皟鐢ㄦ椂搴忓浘
2.3 闈㈠悜榪炴帴鐨勫簲鐢ㄧ▼搴忔祦紼嬪浘
//鍥劇墖鏉ヨ嚜:http://www.vckbase.com/document/viewdoc/?id=484
2008.02.13
1.瀛愮綉鎺╃爜
瀛愮綉鎺╃爜鐨勪綔鐢ㄦ槸紜畾鐩殑鍦板潃涓繪満鏄惁涓庡綋鍓嶄富鏈哄浜庡悓涓緗戠粶錛屽嵆紜繖鐩殑涓繪満鏄湰鍦扮殑榪樻槸榪滅▼鐨勩?br />
P77 璁查亾錛?#8220;CIDR涓嶆槸灝嗗瓙緗戞帺鐮佸垎涓?浣嶇粍錛岃屽皢鍏舵寜鐓т綅鏁板垎鎴?2涓儴鍒嗐傝繖鏍峰彲浠ユ洿濂借鍒掔綉緇滅殑瑙勬ā錛屽噺灝慖P鍦板潃鐨勬氮璐癸紝鎯沖儚涓涓狟綾葷綉緇滀腑鏈?000鍙頒富鏈猴紝鏍規嵁B綾葷綉緇滅殑鐗圭偣榪欏皢嫻垂6涓囦釜IP鍦板潃銆?#8221;
闂錛氱偣瑙h瘽嫻垂錛?br />
2046 = 2鐨?2嬈℃柟錛屽彧瑕?2浣嶄富鏈篒D錛屽叾浣欑綉緇淚D
CIDR涓嶇敤8,8鍒嗭紝鍥虹劧鍙互鏈?2浣嶄富鏈篒D錛岃岃8,8鍒嗗氨瑕佺敤鍒?6浣嶄富鏈猴緝錛わ紝鍥虹劧嫻垂6涓囦釜錛╋及
浣?,8鍒嗕篃鍙互寮曞叆瀛愮綉錛╋激錛屽氨8浣嶅瓙緗戯緝錛わ紝錛樹富鏈猴緝錛わ紝鐢紭鏃朵釜瀛愮綉銆?br />
鎴戦兘鍞旂煡鐐硅濂斤紝澶姒傚康浜嗗惂銆傚疄璺典笅灝卞ソ錛屼笉榪囩綉緇滅殑閲庣偣紼充釜鐜鍛綖锝烇綖
2.鍙互浣跨敤錛戝彴鏈嶅姟鍣ㄥ厖褰撹蔣浠惰礬鐢卞櫒錛岃璁劇疆鍏佽錛╋及杞彂錛屼絾鑲畾鏃犱笓涓氱殑紜歡璺敱鍣ㄦц兘姣旓綖锝烇綖
3.錛╋及鍗忚鐭ラ亾濡備綍鎵懼埌涓や釜鏈湴瀛愮綉
4.緗戠粶閫氫俊鍒嗗崟鎾紝騫挎挱錛岀粍鎾?br />
銆緇勬挱娑夊強錛╋姬錛及錛堢粍綆$悊鍗忚錛?br />
銆P88銆鍐欓亾錛?#8220;錛╋姬錛及涓繪満鎴愬憳鏌ヨ鎶ユ枃鐨勭敓瀛樻湡涓?,浠ョ‘淇濊淇℃伅涓嶄細杞彂鑷沖叾浠栫綉緇溿?#8221;
銆闂錛氭瘡鍒拌礬鐢卞櫒錛岀敓瀛樻湡灝卞噺錛戯紝錛愪簡灝變涪寮冦?br />
銆鍞旀槑璺濇墍璋撶殑鍏跺嚭緗戠粶鐐瑰畾涔夛紝鏈湴錛熷涓涓綉緇滀笅鏈夛紨涓瓙緗戯紝瀛愮綉錛戜笌瀛愮綉2綆楀敂綆楁湰鍦幫紵
銆瀛愮綉闂寸殑榪炴帴鏄氦鎹㈡満錛岃礬鐢卞櫒鏈変粈涔堝尯鍒紵
銆p88榪樺啓鍒幫細“緇勬挱鍙兘瑕佺粡榪囦笉鍚岀殑緗戝叧”
銆闂錛氱綉鍏充笉灝辨槸涓涓礬鐢卞櫒鍦板潃鍚楋紵鐢熷瓨鏈熷埌0鏃惰礬鐢卞櫒鎬庝箞榪樹細杞彂錛?br />
5.錛╋及鍗忚==>紜畾緗戠粶
銆錛★疾錛板崗璁?=>紜畾鐗╃悊鍦板潃錛岀綉緇滀腑鎷夌疆
銆錛★疾錛板崗璁騫挎挱 鍖?#8220;who has"銆
銆鏈夊氨鍥炲簲銆“錛╋及銆is MAC”
6.榛樿緗戝叧
銆鍦ㄨ礬鐢辮〃涓壘涓嶅埌灝卞彂緇欏畠
銆璺敱琛ㄤ腑0.0.0.0銆鐨勯」灝辯郴榛樿緗戝叧
銆濡傛灉鏃狅紝鍦ㄨ礬鐢辮〃涓壘涓嶅埌灝變細涓㈠純
7.榪愯緭灞備互涓嬬殑internet灞傛槸涓嶅彲闈犵殑
銆鎵浠ヨ鏈夋帾鏂藉幓淇濊瘉
銆濡俆CP銆鏈夊簭鍒楀彿錛岀‘瀹氬彿錛岀獥鍙o紙嫻佹帶錛?br />
8.tcp
1.寤虹珛榪炴帴
涓夋鎻℃墜
1.SYN鎶ユ枃孌?br />
2.SYNACK鎶ユ枃孌?br />
3.SYN = 0
2.浼犻佹暟鎹?br />
浼犺緭鎺у埗鍗忚
鍐呭鏈夊簭鍒楀彿錛岀獥鍙d箣綾?br />
9.錛燂紵錛熴鏃犳晠ARP 浠g悊ARP 鍙嶅悜ARP
RPC榪滅▼榪囩▼璋冪敤
澶氳礬澶嶇敤錛忓垎瑙?br />
鍞旀竻妤氱殑姒傚康榪樹笉灝?br />
10.NAT 縐佹湁鍦板潃銆杞鍏湁鍦板潃
浠庤屽彲浠ヨ繛鎺ュ緗戯紙Internet)
騫跺澶栭殣钘忎簡縐佹湁緗戠粶
11.璁懼銆鍒濈悊瑙?br />
闆嗙嚎鍣?nbsp; =====涓鏉℃葷嚎
緗戞ˉ銆 鎶婁袱涓垨澶氫釜緗戞榪炶搗鏉?br />
浜ゆ崲鏈?榪炴帴緋葷粺錛屽叏鍙屽伐
璺敱鍣?鍙繛鎺ヤ袱涓棘錛★籍緗戠粶鐜
12. ipconfig /release
ipconfig /renew
閲嶆柊鑾峰埌閰嶇疆
13. 緗戞vs瀛愮綉銆IP杞彂