鐩存帴涓婁富棰橈紝鎴戝仛浜嬪氨鏄緢鐩存帴錛屽綋鐒朵篃浼?xì)寰堝暟鍡﹀Q屼笅闈綘灝嗕細(xì)涓騫朵綋楠屽埌銆?/p>
int count[2][3] = {{1,2,3},{4,5,6}};
count //鏁扮粍count[0][0]鐨勫湴鍧銆?/p>
count+1//鏁扮粍count[0][0]琛屾暟鐨勫亸縐婚噺涓?鐨勫湴鍧錛屽嵆count[1][0]鐨勫湴鍧銆?/p>
*錛坈ount+1錛?/絳夋晥浜巆ount+1銆?/p>
*錛坈ount+1錛?1//count[0][0]琛屾暟鍋忕Щ閲忎負(fù)1錛屽垪鏁板亸縐婚噺涓?鐨勫湴鍧錛屽嵆count[1][1]鐨勫湴鍧銆?/p>
**錛坈ount+1錛?/count[1][0]鐨勫箋傛敞鎰忚繖閲屾槸2涓?#8220;*”銆?/p>
*錛?錛坈ount+1錛?1錛?/count[1][1]鐨勫鹼紝榪欓噷涔熷彲浠ュ啓鎴?*錛坈ount+1錛?1錛岀粨鏋滈兘鏄竴鏍風(fēng)殑錛屽弽姝ｅ氨鏄2涓?#8220;*”銆傝鍒拌繖閲屾湁鐨勪漢鍙兘灝辮寰楀鎬簡錛屼笂闈笉鏄浜?#8220;*錛坈ount+1錛?/絳夋晥浜巆ount+1”閭?錛?錛坈ount+1錛?1錛夎兘涓嶈兘鍐欐垚*錛堬紙count+1錛?1錛夊憿錛熺瓟妗堟槸寰堣偗瀹氱殑錛氫笉鑳姐備負(fù)浠涔堝憿錛熸垜鐨勭悊瑙ｆ槸錛氬鏋滃崟綰湴琛ㄧず琛屽湴鍧鐨勬椂鍊欐湁鏃?#8220;*”閮芥棤鎵璋擄紝鍙嶆鏄竴琛岀殑鍦板潃錛屽悓鏃朵篃鏄竴琛岀殑絎竴鍒楀厓绱犵殑鍦板潃銆?錛?錛坈ount+1錛?1錛夊惈涔夋槸鍏堝彇寰楃1琛岀殑鍦板潃錛岀劧鍚庡啀鍦ㄧ1琛屽唴鍋忕Щ1鍒楀悗錛屽彇寰楀湴鍧鎵瀛樺偍鐨勫?銆傚鏋滃啓鎴?錛堬紙count+1錛?1錛夊垯鍚箟鍙樻垚錛氳鏁板亸縐?鍚庡啀鍋忕Щ1鍚庣殑鍦板潃銆?br> 榪欓噷鏈夌偣楗跺ご錛屽鐪嬪嚑嬈″氨浼?xì)鏄庣櫧浜嗐傚綋鐒舵寜鐓ф垜鐨勭悊瑙ｆ潵鐪嬩篃鏄湁涓瀹氶闄╃殑錛屽洜涓烘垜鍙兘鐞嗚В閿欎簡銆備笉榪囪繖浜涚粨鏋滄垜閮借瘯楠岃繃鐨勶紝緇濆涓嶄細(xì)閿欑殑銆?/p>
*錛坈ount+1錛塠1]//count[1][1]鐨勫箋傞鍏堢敤*錛坈ount+1錛夊彇寰楄鍦板潃錛岀劧鍚庣敤[1]鐩存帴鑾峰彇榪欎釜鍦板潃涓1鍙峰厓绱犵殑鍊箋傝繖涓〃杈懼紡絳夋晥浜?(count[1]+1)錛屽悓鏃朵篃絳夋晥浜?(*(count+1)+1)銆倊~鎵戦殈~宸茬粡鏈変漢褰誨簳鏅曞掍簡銆傝繖閲岀殑“*錛坈ount+1錛?#8221;錛?#8220;count[1]”閮芥槸涓轟簡鏈夋晥鍦拌繘琛岃鍦板潃瀹氫綅錛屽洜涓哄彧鏈夊厛鎵懼埌琛屽湴鍧鎵嶈兘榪涘垪瀹氫綅鍢涳紒
鏈鍚庢葷粨錛?/p>
1. 濡傛灉浣犳槸鎯寵幏寰楀緇存暟緇勪腑涓琛岀殑鍦板潃鍒欎嬌鐢ㄤ笉浣跨敤“*”閮芥棤鎵璋撱傚墠鎻愭槸娌℃湁“[]”鍑虹幇銆?/p>
2. 濡傛灉浣犳槸鎯寵幏寰楀緇存暟緇勪腑鍏冪礌鐨勫湴鍧鍒欓鍏堝緱紜畾濂芥鍏冪礌鐨勮鍦板潃錛堜嬌鐢?#8220;*”錛屾瘮濡?錛坈ount+1錛夎繖鏍峰氨紜畾浜嗘槸絎?琛岀殑鍦板潃錛夛紝鐒跺悗鍐嶈繘琛屽垪鍋忕Щ銆?/p>
3. 濡傛灉浣犳槸鎯寵幏寰楀緇存暟緇勪腑鍏冪礌鐨勫鹼紝鍒欏彲浠ュ湪鍦板潃涔嬪墠鍔?#8220;*”涓鑸暣涓〃杈懼紡鏄?涓?#8220;*”錛屽洜涓虹‘瀹氭煇涓琛岀殑鏃跺欑殑閭ｄ釜“*”鏄繀涓嶅彲灝戠殑銆傚綋鐒朵篃鍙互浣跨敤甯︽湁“[]”鐨勬柟寮忥紝榪欎釜鏂瑰紡閲岄潰闇涓涓?#8220;*”鍜屼竴涓?#8220;[]”灝卞彲浠ヨ幏寰楁暟緇勭殑鍊箋傚鏋滀綘璇翠嬌鐢╟ount[1][1]榪欐牱鐨勬柟寮忎笉鏄洿濂戒箞錛熶綘璇寸殑涓鐐歸兘娌￠敊錛屼笉榪囨垜榪欓噷涓昏璁ㄨ鐨勬槸涓庡湴鍧鐩稿叧鐨勫唴瀹廣備笉榪囪欏哄甫璇翠竴涓嬪鏋滀嬌鐢ㄥ弻“[]”鐨勬儏鍐典笅琛ㄨ揪寮忓墠鍔犱笉鍔?#8220;*”閮芥槸鏃犳墍璋撶殑銆?/p>
鍐嶄竴嬈℃葷粨錛?/p>
1錛?nbsp;澶氱淮鏁扮粍鐨勫湴鍧涓紝閲嶇偣灝辨槸榪涜琛屽湴鍧瀹氫綅錛屾湁2縐嶆柟寮忥紝絎竴縐嶏細(xì)鍔?#8220;*”eg錛?錛坈ount+1錛夈傜浜岀錛氫嬌鐢?#8220;[]”eg錛歝ount[1]銆?br> 榪欓噷鏈変竴涓棶棰樺晩錛? count[1]鏄湴鍧榪樻槸鍊煎晩錛熷鏋滀綘鐨勫洖絳旀槸鍦板潃閭ｈ鍐嶅洖澶寸湅涓涓嬫渶鍚庢葷粨絎竴鏉°傝繖閲岀殑* count[1]琛ㄧず鐨勬槸涓涓鹼紝鍥犱負(fù)榪欐潯璇彞鐨勫惈涔夋槸鍙朿ount[1]鐨勫鹼紝鍙槸count[1]鍙槸涓涓湴鍧錛屽彧榪涜浜嗚瀹氫綅錛屽亸瑕佸畠浜ゅ嚭涓涓煎嚭鏉ワ紝鍙ソ鎶婂垪鎺掑悕絎竴鐨勭0涓厓绱犱涪浜嗗嚭鏉ワ紝鍗砪ount[1][0]銆?/p>
瀛︾敓鏈嬪弸搴斾粯鑰冭瘯鐨勬葷粨錛?br>1錛?nbsp;鍗曚釜“*”鎴栧崟涓?#8220;[]”鍙互鑾峰緱鍦板潃錛涘弻“*”鎴栧弻“[]”鎴栦竴涓?#8220;*”鍔犱笂涓涓?#8220;[]”鍙互鑾峰緱鏁扮粍鍊箋傝繖鏍風(fēng)殑瑙勫緥鏄笉鏄緢綆媧佹槑浜嗭紵
閿欒涓嶈凍涔嬪榪樿澶у澶氬鎸囨錛佽阿璋紒
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浣跨敤* 姣斿int* a;
2.鎸囬拡涓瓨鏀劇殑鏄粈涔堝憿錛?/strong>
鎸囬拡涓瓨鏀劇殑鏄湴鍧銆傛瘮濡?int* a = NLL; int b = 0; a = &b;
渚嬪瓙涓妸b鐨勫湴鍧緇欎簡int鍨嬫寚閽坅銆?amp;絎﹀彿鏄敤鏉ヨ幏寰椾換浣曞彉閲忓湴鍧鐨勶紝榪欓噷鍙橀噺b鐨勫湴鍧灝辨槸&b銆?br>
閭鐨勫湴鍧鐨勫兼槸澶氬皯鍛紵榪欎釜鏄唴瀛樹腑鍒嗛厤鐨勶紝姣忔閮藉彲鑳戒笉涓鏍楓?br>
榪欓噷榪橀渶瑕佹敞鎰忕殑鏄彉閲忕殑綾誨瀷蹇呴』鍜屾寚閽堢殑綾誨瀷涓鑷存墠鍙互鎶婂彉閲忕殑鍦板潃鏀懼叆鎸囬拡涓幓銆?/p>
3.鎸囬拡涓殑鍦板潃鐨勫煎浣曡幏鍙栵紵
鍚屾牱鏄?榪欎釜絎﹀彿錛屾瘮濡傛垜浠鑾峰彇鎸囬拡a鐨勫鹼紝鐩存帴*a灝卞彲浠ヤ簡銆?br>
姣斿*a+1 緇撴灉涓?銆傚鏋滃啓鎴恆+1灝辨槸涓嶆紜殑浜嗭紝寰楀嚭鐨勭粨鏋滃氨鏄痑涓殑鍐呭瓨鍦板潃鍔犱笂1鍚庣殑閭ｅ潡鍐呭瓨鍦板潃浜嗐?/p>
浣嗘槸鐗瑰埆鐨勬槸錛屽鏋滀綘瀹氫箟鎴?char *string = “Hello world!”;鐩存帴string鑾峰緱鐨勫煎茍涓嶆槸鍦板潃鑰屾槸“Hello world!”銆?br>
涓轟粈涔堝憿錛熷洜涓鴻緭鍑烘搷浣滄妸char*褰撴垚char鏁扮粍鏉ュ寰呫?/p>
4.浠涔堟槸鎸囬拡鏁扮粍錛?/strong>
璇寸櫧浜嗚灝辨槸鏁扮粍鐨勪腑瀛樻斁鐨勬槸鎸囬拡銆?/p>
姣斿char *strChar[] = {“123”,”1234”,”12345”}; 鍒檚trChar[0]涓瓨鏀劇殑鏄?#8221;123”鍦板潃鐨勫鹼紝浠ユ綾繪帹銆?br>
浣嗘槸榪欓噷铏界劧瀛樻斁鐨勬槸鍦板潃鐨勫鹼紝浣嗘槸鍙互鐩存帴鐢╯trChar[0]鍙栧緱”123”銆?/p>