锘??xml version="1.0" encoding="utf-8" standalone="yes"?> 鎿嶄綔C椋庢牸瀛楃涓茬殑鏍囧噯搴撳嚱鏁?/span> strlen(s) 榪斿洖s鐨勯暱搴︼紝涓嶅寘鎷粨鏉熺null strcmp(s1,s2) 姣旇緝2涓瓧絎︿覆錛岀浉鍚岃繑鍥?/span>0錛?/span>s1>s2榪斿洖姝f暟錛?/span>s1<s2榪斿洖璐熸暟 strcat(s1,s2) 灝嗗瓧絎?/span>s2榪炴帴鍒?/span>s1鍚庯紝騫惰繑鍥?/span>s1 strcpy(s1,s2) 灝?/span>s2澶嶅埗緇?/span>s1錛屽茍榪斿洖s1 strncat(s1,s2) 灝?/span>s2鐨勫墠n涓瓧絎﹁繛鎺ュ埌s1鍚庯紝騫惰繑鍥?/span>s1 strncpy(s1,s2) 灝?/span>s2鐨勫墠n涓瓧絎﹀鍒剁粰s1錛屽茍榪斿洖s1 涓銆佺煡璇嗙偣 void*鎸囬拡錛氬彲浠ヤ繚瀛樹換浣曠被鍨嬪璞$殑鎸囬拡錛涗絾鏄笉鍏佽浣跨敤void*鎸囬拡鎿嶄綔瀹冩墍鎸囧悜鐨勫璞°?br /> 銆?銆戙乧onst鎸囬拡錛?span style="color: #ff0000">double *const cptr 涓銆佺煡璇嗙偣 鏁扮粍鍒濆鍖栨椂錛岀敤{}琛ㄧず鏃訛紝濡傛灉鏄被綾誨瀷鐨勶紝娌℃湁榛樿鏋勯犲嚱鏁幫紝鍒欏繀欏繪彁渚涙樉紺虹殑鍒濆鍖栥?br /> 浣跨敤涓緇勫瓧絎﹀瓧闈㈠煎垵濮嬪寲瀛楃鏁扮粍鏃訛紝涓瀹氳娣誨姞瀛楃涓茬殑絀哄瓧絎︼紝涓嶇劧灝嗗鑷寸紪璇戦敊璇紝濡備笅錛?/p>
涓銆佺煡璇嗙偣 string瀵硅薄鍒濆鍖栨柟寮?/span> string s1; 榛樿鏋勯犲嚱鏁幫紝s1涓虹┖涓?/span> string s2(s1) 灝?/span>s2鍒濆鍖栦負s1鐨勪竴涓壇鏈?/span> string s3(“Value”); 灝?/span>s3鍒濆鍖栦負涓涓瓧絎︿覆瀛楅潰鍊肩殑鍓湰 string s4(n, ‘c’); 灝?/span>s4鍒濆鍖栦負瀛楃‘c’鐨?/span>n涓壇鏈?/span> 錛?錛夈乻tring綾誨瀷鐨勮緭鍏ユ搷浣滅鍜実etline鍑芥暟 Cctype瀹氫箟鐨勫嚱鏁?/span> isalnum(c) 濡傛灉c鏄瓧姣嶅拰鏁板瓧錛屽垯涓?/span>true isalpha(c) 濡傛灉c鏄瓧姣嶏紝鍒欎負true isdigit(c) 濡傛灉c鏄暟瀛楋紝鍒欎負true isxdigit(c) 濡傛灉c鏄崄鍏繘鍒舵暟錛屽垯涓?/span>true iscntrl(c) 濡傛灉c鏄帶鍒跺瓧絎︼紝鍒欎負true ispunct(c) 濡傛灉c鏄爣鐐圭鍙鳳紝鍒欎負true isspace(c) 濡傛灉c鏄┖鐧藉瓧絎︼紝鍒欎負true isprint(c) 濡傛灉c鏄彲鎵撳嵃鐨勫瓧絎︼紝鍒欎負true isgraph(c) 濡傛灉c涓嶆槸絀烘牸錛屼絾鍙互鎵撳嵃錛屽垯涓?/span>true islower(c) 濡傛灉c鏄皬鍐欏瓧姣嶏紝鍒欎負true isupper(c) 濡傛灉c鏄ぇ鍐欏瓧姣嶏紝鍒欎負true tolower(c) 濡傛灉c鏄ぇ鍐欏瓧姣嶏紝鍒欒繑鍥炲叾灝忓啓瀛楁瘝褰㈠紡錛屽惁鍒欑洿鎺ヨ繑鍥?/span>c toupper(c) 濡傛灉c鏄ぇ鍐欏瓧姣嶏紝鍒欒繑鍥炲叾灝忓啓瀛楁瘝褰㈠紡錛屽惁鍒欑洿鎺ヨ繑鍥?/span>c 涓銆佺煡璇嗙偣 寮曠敤錛坮eference錛夊氨鏄璞$殑鍙︿竴涓悕縐幫紱闈瀋ongst寮曠敤鍙兘緇戝畾鍒頒笌璇ュ紩鐢ㄧ浉鍚岀被鍨嬬殑瀵規柟涓婏紝const寮曠敤鍙互緇戝畾鍒頒笉鍚屼絾鐩稿叧鐨勭被鍨嬪璞℃垨緇戝畾鍒板彸鍊箋?/p>
閲嶇偣錛歝onst寮曠敤錛屾寚鍚慶onst瀵硅薄鐨勫紩鐢ㄣ? 3銆乼ypedef typedef鍙互鐢ㄦ潵瀹氫箟綾誨瀷鐨勫悓涔夎瘝銆傛牸寮忎負錛歵ypedef + 鏁版嵁綾誨瀷 + 鏍囪瘑絎︺?/p>
4銆佹灇涓撅紙enum錛?/p>
鏍煎紡錛歟num enumName(l鍙? {enumerator1錛?enumerator2錛?..} 錛?錛夈佹灇涓炬垚鍛橀兘鏄父閲忚〃杈懼紡錛堝湪緙栬瘧鍣ㄧ紪璇戞槸灝辮兘璁$畻鍑虹粨鏋滅殑鏁村瀷琛ㄨ揪寮忥紝鎴栨暣鍨嬪瓧闈㈠煎父閲忥級錛?/p>
錛?錛夈侀粯璁ょ殑絎竴涓灇涓炬垚鍛樻槸0錛屽悗闈㈢殑姣忎釜鏋氫婦鎴愬憳閮芥瘮鍓嶄竴涓ぇ1錛?/p>
錛?錛夈佹灇涓炬垚鍛樺間笉鏄敮涓鐨勶細enum Points { p1 = 1, p2, p3 = 2, p4}錛岃繖鍏朵腑p1=1,p2=2,p3=2,p4=3錛?/p>
錛?錛夈佹灇涓劇被鍨嬬殑瀵硅薄鍒濆鍖栨垨璧嬪兼椂錛屽彧鑳介氳繃璇ョ被鍨嬫灇涓劇殑鏌愪釜鎴愬憳榪涜銆?/p>
5銆佺被綾誨瀷 娉ㄦ剰class鍜宻truct鐨勫尯鍒細鍞竴鍖哄埆錛?span style="color: #ff0000">榛樿鎯呭喌涓嬶紝struct鐨勬垚鍛樹負public錛宑lass鐨勬垚鍛樹負private銆?/span> 6銆佸ご鏂囦歡 鍦╟onst鍙橀噺鏄敤甯擱噺琛ㄨ揪寮忓垵濮嬪寲鏃訛紝鍙互灝嗗畠瀹氫箟鍦ㄥご鏂囦歡涓紱濡傛灉涓嶆槸錛屽垯涓嶅簲璇ュ湪澶存枃浠朵腑瀹氫箟銆?/p> 涓銆佺煡璇嗙偣 涓銆佺煡璇嗙偣
1銆佹暟緇?/span>
2銆佹寚閽堢殑寮曞叆
3銆丆椋庢牸瀛楃涓?/span>
4銆佸緇存暟緇?/span>
浜屻佽鐐?nbsp;
3銆丆椋庢牸瀛?span style="color: ">絎︿覆
錛?錛夈丆椋庢牸瀛楃涓詫紝鏄互絀烘牸null緇撴潫鐨勫瓧絎?/span>鏁扮粍銆?/span>涓嬮潰鏄搷浣淐椋庢牸瀛楃涓茬殑鏍囧噯搴撳嚱鏁幫細
strncat鍜宻trncoy鏄瘮杈冨畨鍏ㄧ殑鍑芥暟錛屾帹鑽愪嬌鐢ㄣ?br /> 錛?錛夈佸姩鎬佹暟緇?br /> const瀵硅薄鐨勬暟緇勶紝鍦ㄥ畾涔夋椂蹇呴』鎻愪緵鍒濆鍖栵細
// 閿欒錛氭病鏈夋彁渚涘垵濮嬪寲
const int *pci_bad = new const int[100];
// 姝g‘錛氭槑紜皟鐢ㄦ瀯閫犲嚱鏁板垵濮嬪寲
const int *pci_ok = new const int[100]();
// 姝g‘錛氫嬌鐢ㄩ粯璁ょ殑鏋勯犲嚱鏁板垵濮嬪寲錛堣繖縐嶆儏鍐典笅錛岃綾誨瀷蹇呴』鎻愪緵榛樿鏋勯犲嚱鏁幫級
const string *pcs = new const string[100];
4銆佸緇存暟緇?br /> 鐢╰ypedef綆鍖栨寚鍚戝緇存暟緇勭殑鎸囬拡錛?
int ia[3][4];
int (*ip)[4] = ia; // 涓涓寚鍚戞暟緇勭殑鎸囬拡錛岃繖涓暟緇勫寘鎷?涓厓绱?/span>
ip = &ia[2]; // 鎸囧悜鐨勬暟緇勬槸浠巌a鐨勬渶鍚庝竴鎺掓暟緇?/span>
typedef int int_array[4]; // 鍖呭惈4涓厓绱犵殑int鏁扮粍
int_array *ipp = ia; // 絳変環浜巌nt (*ip)[4] = ia;
]]>
1銆佹暟緇?/span>
2銆佹寚閽堢殑寮曞叆
3銆丆椋庢牸瀛楃涓?/span>
4銆佸緇存暟緇?br />
浜屻佽鐐?br /> 2銆佹寚閽堢殑寮曞叆
錛?錛夈佹寚閽堝垵濮嬪寲鍜岃祴鍊兼搷浣滅殑綰︽潫錛?br /> 涓嶈兘鎶奿nt鍨嬪彉閲忚祴緇欐寚閽堬紝浣嗘槸鍙互鍚ф暟鍊?鎴栧湪緙栬瘧鏃跺彲鑾峰緱0鍊肩殑const閲忚祴緇欐寚閽堬細
int ival;
int zero = 0;
const int c_ival = 0;
int *pi = ival; // 閿欒錛?/span>
pi = zero; // 閿欒錛氫笉鑳戒嬌鐢╥nt鐩存帴璧嬪鹼紝鍙互鐢?amp;zero
pi = c_ival; // 姝g‘
pi = 0; // 姝g‘
錛?錛夈佹寚閽堝拰寮曠敤
寮曠敤鎬繪槸鎸囧悜鏌愪釜瀵硅薄錛屽畾涔夊紩鐢ㄦ椂娌℃湁鍒濆鍖栨槸閿欒鐨勶紱鎸囬拡瀹氫箟鏃跺彲浠ヤ笉鐢ㄥ垵濮嬪寲
緇欏紩鐢ㄨ祴鍊間慨鏀圭殑鏄寮曠敤鎵鍏寵仈鐨勫璞$殑鍊鹼紱鎸囬拡灝變慨鏀逛簡鎸囬拡鐨勫?/p>
int ival = 1024, ival2 = 2048;
int *pi = &ival, *pi2 = &ival2;
pi = pi2; // 榪欓噷灝變慨鏀筽i鎸囧悜鐨勫璞℃槸pi2錛岃屼笉鍦ㄦ槸pi浜嗐?/span>

int &ri = ival, &ri2 = ival2;
ri = ri2; // 榪欓噷淇敼鐨勫氨鏄痠val鐨勫間簡錛屼嬌ival鐨勫間負2048
錛?錛夈佹寚閽堢殑鎿嶄綔
ptrdiff_t錛氳〃紺?涓寚閽堝噺娉曟搷浣滅殑緇撴灉錛?br /> ptrdiff_t鍜宻ize_t鐨勫尯鍒細size_t鏄痷nsigned綾誨瀷錛宲trdiff_t鏄痵igned綾誨瀷鐨勩?br /> C++鍏佽璁$畻鏁扮粍瀵硅薄鐨勮秴鍑烘湯绔殑鍦板潃錛屼絾鏄笉鍏佽瀵規敼鍦板潃榪涜瑙e紩鐢ㄣ?br />
錛?錛夈佹寚閽堝拰const
銆?銆戙佹寚鍚慶onst瀵硅薄鐨勬寚閽堬細const double *cptr
C++寮哄埗瑕佹眰鎸囧悜const瀵硅薄鐨勬寚閽堜篃蹇呴』鍏鋒湁const鐗規э紝鍗蟲妸涓涓猚onst瀵硅薄鐨勫湴鍧璧嬬粰涓涓櫘閫氱殑銆侀潪cosnt瀵硅薄鐨勬寚閽堜細瀵艱嚧緙栬瘧閿欒錛?br /> const闄愬畾浜哻ptr鎸囬拡鎵鎸囩殑瀵硅薄鏄痗onst錛岃屼笉鏄痗ptr鏈韓錛屽嵆鍙互緇檆ptr閲嶆柊璧嬪鹼紝浣嗘槸涓嶈兘閫氳繃cptr淇敼鍏舵寚瀵硅薄鐨勫鹼紱
涓嶈兘浣跨敤void*鎸囬拡淇濆瓨const瀵硅薄鐨勫湴鍧錛屽繀欏葷敤const void*錛?br /> 鍏佽鎶婇潪const瀵硅薄鐨勫湴鍧璧嬪肩粰鎸囧悜const瀵硅薄鐨勬寚閽堬紝浣嗘槸鍙嶈繃鏉ヤ笉琛岋紙鍗崇涓鐐硅鐨勶級錛涗絾榪欐椂榪樻槸涓嶈兘閫氳繃鎸囬拡淇敼鍏舵寚瀵硅薄鐨勫箋?/p>
double dval = 3.14;
const double pi = 3.14;
double *pi = π // 閿欒錛氫笉鑳芥妸const瀵硅薄璧嬬粰闈瀋onst鎸囬拡
const double *cptr = π // 姝g‘
*cptr = 3.1415; // 閿欒錛氫笉鑳介氳繃cosnt鎸囬拡淇敼鎵鎸囧璞$殑鍊?/span>
cptr = &dval; // 姝g‘錛氬彲浠ョ敤闈瀋onst瀵硅薄緇檆onst鎸囬拡璧嬪?/span>
*cptr = 3.1415; // 閿欒錛氳櫧鐒惰繖鏃舵寚鍚戜簡闈瀋onst瀵硅薄錛屼絾榪樻槸涓嶈兘榪欐牱淇敼瀵硅薄鐨勫?/span>
榪欎釜鎸囬拡灝辨槸璇存槑鎸囬拡鏈韓鏄笉鑳戒慨鏀圭殑錛屽嵆瀹冧笉鑳戒嬌const鎸囬拡鍐嶆寚鍚戝叾浠栧璞★紱姝e洜涓鴻繖鏍鳳紝鎵浠onst鎸囬拡蹇呴』鍦ㄥ畾涔夋椂鍒濆鍖栵紙鍜宑onst鍙橀噺涓鏍鳳級銆?br /> 銆?銆戙佹寚鍚慶onst瀵硅薄鐨刢onst鎸囬拡錛?span style="color: #ff0000">const double *const pi_ptr
榪欎釜鎸囬拡鍗充笉鑳戒慨鏀瑰畠鎸囧悜瀵硅薄鐨勫鹼紝涔熶笉鑳戒慨鏀硅鎸囬拡鐨勬寚鍚戯紙鍗沖畠鐨勫湴鍧錛夈?br />
錛?錛夈佹寚閽堝拰typedef
typedef string *pstring;
const pstring cstr;
// 澹版槑const pstring鏃訛紝const淇グ鐨勬槸pstring鐨勭被鍨嬶紝鑰宲string榪欐槸涓涓寚閽堬紝鎵浠ヨ繖閲宑str鏄竴涓猚onst鐨勬寚閽堬紝鎸囧悜string錛岀瓑浠蜂簬涓嬮潰錛?/span>
string *const cstr;
]]>
1銆佹暟緇?/span>
2銆佹寚閽堢殑寮曞叆
3銆丆椋庢牸瀛楃涓?/span>
4銆佸緇存暟緇?/span>
浜屻佽鐐?br /> 1銆佹暟緇?br /> 錛?錛夈佹暟緇勭殑瀹氫箟鍜屽垵濮嬪寲
鏁扮粍瀹氫箟鏃訛紝緇存暟蹇呴』閬靛畧濡備笅瑙勫垯錛?span style="color: #ff0000">蹇呴』鐢ㄥぇ浜庣瓑浜?鐨勫父閲忚〃杈懼紡銆?/span>闈瀋onst鍙橀噺鍙婅鍒拌繍琛岄樁孌墊墠鐭ラ亾鍏跺肩殑const鍙橀噺涓嶈兘鐢ㄤ簬緇存暟銆?br />
int staff_size = 27;
const unsigned sz = get_size();
double salaries[staff_size]; // 閿欒錛氫笉鏄痗onst鍙橀噺
int vals[sz]; // 閿欒錛氬埌榪愯鏄墠鐭ラ亾
int test_scores[get_size()]; // 閿欒錛氫笉鏄痗onst琛ㄨ揪寮?/span>
const char cArr[][3] = {"abc", "cde", "edf"}; // 閿欒錛氬簲璇ユ槸4銆?/span>
錛?錛夈佹暟緇勬搷浣?br /> 鐢ㄥ皬鏍囪闂暟緇勫厓绱犮傛暟緇勪笅鏍囩殑姝g‘綾誨瀷鏄痵ize_t錛堝悓bitset鐨刢ount()鎴愬憳鍑芥暟榪斿洖綾誨瀷涓鑷達級銆?br />
]]>
]]>
1銆佸懡鍚嶇┖闂寸殑using澹版槑
2銆佹爣鍑嗗簱string綾誨瀷
3銆佹爣鍑嗗簱vector綾誨瀷
4銆佽凱浠e櫒綆浠?br /> 5銆佹爣鍑嗗簱bitset綾誨瀷
浜屻佽鐐?/strong>
1銆佸懡鍚嶇┖闂寸殑using澹版槑
浣跨敤using澹版槑鍙互鍦ㄤ笉闇瑕佸姞鍓嶇紑namespace_name錛氾細鐨勬儏鍐典笅璁塊棶鍛藉悕絀洪棿涓殑鍚嶅瓧錛屾牸寮忓錛?span style="color: #0000ff">using namespace::name;
2銆佹爣鍑嗗簱string綾誨瀷
string綾誨瀷鐨勮緭鍏ユ搷浣滅錛氳鍙栧茍蹇界暐寮澶存墍鏈夌殑絀虹櫧瀛楃錛堢┖鏍箋佹崲琛岀銆佸埗琛ㄧ錛夛紱璇誨彇瀛楃鐩村埌鍐嶆閬囧埌絀虹櫧瀛楃錛岃鍙栫粨鏉熴?br /> getline鍑芥暟錛氬寘鍚?涓弬鏁幫紝杈撳叆嫻佸璞″拰string瀵硅薄錛涜鍙栧唴瀹圭洿鍒扮鍒版崲琛岀錛屼絾騫朵笉鍖呮嫭鎹㈣絎︼紙瀹冧笉蹇界暐寮澶寸殑鎹㈣絎︼紝濡傛灉鏈夛紝閭d箞榪欐鐨勮鍙栧唴瀹逛負絀猴級
錛?錛夈乻tring::size_type綾誨瀷
string::size_type鏄竴縐嶄笌鏈哄櫒鏃犲叧鐨勩佹棤絎﹀彿鐨勬暣鍨嬬被鍨嬶紙int錛宭ong閮藉彲鑳斤級錛屽畠鍙互淇濆瓨浠繪剰string瀵硅薄鐨勯暱搴︺?br />
錛?錛夈佷笌瀛楃涓插瓧闈㈠艱繛鎺ョ殑娉ㄦ剰鐐?br />
string s1 = "hello";
string s2 = "world";
string s3 = s1 + " "; // ok
string s4 = "hello" + " "; // error錛氫笉鑳?涓瓧闈覆瀛楅潰鍊肩浉鍔?/span>
string s5 = s1 + " " + "world"; // ok錛歴1鍜? "鐩稿姞鍚庤繕鏄竴涓柊鐨剆tring瀵硅薄錛屽彲浠ュ拰鍚庨潰鐨勭浉鍔?/span>
string s6 = "hello" + " " + s2; // error錛氬墠闈?涓氨鐩稿綋浜庡瓧闈覆瀛楅潰鍊肩浉鍔?br />
錛?錛夈乻tring瀵硅薄涓瓧絎︾殑澶勭悊
涓昏鏄敤鍒癱ctype澶存枃浠朵腑瀹氫箟鐨勫嚱鏁幫紝濡備笅錛?nbsp;
]]>
1銆佸熀鏈唴緗被鍨嬶紙綆楁湳綾誨瀷鍜寁oid綾誨瀷錛?br /> 2銆佸瓧闈㈠煎父閲忓拰鍙橀噺
3銆乧onst闄愬畾絎?br /> 4銆佸紩鐢?br /> 5銆乼ypedef鍚嶅瓧
6銆佹灇涓?br /> 7銆佺被綾誨瀷
8銆佸ご鏂囦歡
浜屻佽鐐?/strong>
1銆乧onst闄愬畾絎?br /> 欖旀暟錛氬湪涓婁笅鏂囦腑娌℃湁浣撶幇鍑烘潵錛屽ソ鍍忚繖涓暟鏄瓟鏈埇鐨勪粠絀轟腑鍑虹幇鐨勩傚涓嬮潰鐨?#8220;512”榪欎釜鏁?nbsp;
for (int i = 0; i != 512; ++i) {
//
..
}
浣跨敤const闄愬畾絎﹂渶娉ㄦ剰錛?br /> 錛?錛夈佸畾涔夌殑const鐨勫彉閲忎粛闅炬槸涓涓乏鍊鹼紝浣嗘槸榪欎釜宸﹀兼槸涓嶅彲淇敼鐨勶紱涓斿湪瀹氫箟鏃跺繀欏誨垵濮嬪寲錛?br /> 錛?錛夈乧onst鍙橀噺榛樿閮芥槸鏂囦歡灞閮ㄧ殑錛屽鏋滄兂琚叾浠栨枃浠惰闂紝蹇呴』鍦ㄥ墠闈㈠姞鍏xtern銆傚錛?
file_1.cpp:
extern const int bufszie = 512; // 瀹氫箟錛岄渶瑕佽祴鍒濆?/span>
fiel_2.cpp:
extern const int bufsize;
.
for (int i = 0; i != bufsize錛?++i) {
//
.
}
2銆佸紩鐢?br />
const int &refVal = ival; // 榪欎釜鏄紜殑璧嬪?/span>
int &ref2 = ival; // 榪欎釜鏄敊璇殑璧嬪鹼紙ref2鏄彲浠ラ噸鏂拌祴鍊鹼紝榪欐牱瀵艱嚧ival鐨勫間細琚敼鍙橈紝浣唅val鏄痗onst鐨勶紝鎵浠ヨ繖鏍瘋祴鍊兼槸涓嶅厑璁哥殑錛?/span>
2銆佸垵濮嬪寲
double dval = 42.12;
const int &r1 = 42; // 鐢ㄥ彸鍊鹼紙瀛楅潰鍊煎父閲忥級鍒濆鍖?/span>
const int &r2 = dval; // 鐢ㄤ笉鍚岄偅涓被鍨嬬殑瀵硅薄鍒濆鍖栵紝榪欓噷鐨剅2 = 42銆傚鏋渞2涓嶆槸const鐨勮瘽錛岃繖鏍峰垵濮嬪寲鏄敊璇殑銆?/span>
1銆佸熀鏈唴緗被鍨嬶紙綆楁湳綾誨瀷鍜寁oid綾誨瀷錛?/span>
2銆佸瓧闈㈠煎父閲忓拰鍙橀噺
3銆乧onst闄愬畾絎?br /> 4銆佸紩鐢?br /> 5銆乼ypedef鍚嶅瓧
6銆佹灇涓?br /> 7銆佺被綾誨瀷
8銆佸ご鏂囦歡
浜屻佽鐐?/strong>
2銆佸瓧闈㈠煎父閲?br /> 鍙湁鍐呯疆綾誨瀷瀛樺湪瀛楅潰鍊鹼紝娌℃湁綾葷被鍨嬬殑瀛楅潰鍊箋?br /> 20錛堝崄榪涘埗錛夛紝024錛堝叓榪涘埗錛屼互闆跺紑澶達級錛?x14錛堝崄鍏繘鍒訛紝浠?x寮澶達級 ------------- 鏁村艦瀛楅潰鍊?br /> 3.14159F錛堝崟綺懼害錛夛紝12.345L錛堟墿灞曠簿搴︼級錛?e0錛堢瀛﹁鏁幫級 ------------- 嫻偣瀛楅潰鍊?br /> true錛宖alse ------------- 甯冨皵瀛楅潰鍊?br /> 'a'錛?2'錛堣繖涓や釜閮芥槸瀛楃錛夛紝L'a'錛堝瀛楃錛寃char_t錛?nbsp; ------------- 瀛楃瀛楅潰鍊?br /> "Hello World"錛堝瓧絎︿覆錛夛紝L"Hello World"錛堝瀛楃涓詫級 ------------- 瀛楃涓插瓧闈㈠?br />
姝ゅ榪樻湁涓浜?#8220;闈炴墦鍗板瓧絎﹁漿鎹㈠簭鍒?#8221;錛氬錛歕n錛堟崲琛岋級銆乗t錛堟按騫沖埗琛ㄧ錛夈乗r錛堝洖杞︾錛夈乗\錛堝弽鏂滄潬錛夌瓑錛堜篃鍙互鐢╘ooo錛屽嵆3涓弽鏂滄潬鍔?涓暟瀛楁潵琛ㄧず錛屽浜庝笌ASCII鐮侊級銆?br />
3銆佸彉閲?br /> 鍙沖鹼紙rvalue錛夛細鍙沖煎彧鑳藉嚭鐜板湪璧嬪肩殑鍙寵竟錛屼笉鑳藉嚭鐜板湪璧嬪艱鍙ョ殑宸﹁竟錛?br /> 宸﹀鹼紙lvalue錛夛細宸﹀煎彲浠ュ嚭鐜板湪璧嬪艱鍙ョ殑宸﹁竟錛屼篃鍙互鍑虹幇鍦ㄥ彸杈廣?br /> 鏁板瓧瀛楅潰鍊兼槸鍙沖鹼紝鍥犳涓嶈兘琚祴鍊鹼紝濡?0 = 1錛岃繖鏍峰氨鏄敊璇殑銆?br />
鍙橀噺鍚嶏紙鏍囪瘑絎︼級錛岀敱瀛楁瘝銆佹暟瀛楀拰涓嬪垝綰跨粍鎴愩傚繀欏諱互涓嬪垝綰挎垨瀛楁瘝寮澶達紝涓嶈兘浠ユ暟瀛楀紑澶淬傛爣璇嗙涓嶈兘鍖呭惈2涓繛緇殑涓嬪垝綰匡紝涔熶笉鑳戒互涓嬪垝綰垮紑澶村悗闈㈢揣璺熶竴涓ぇ鍐欏瓧姣嶃傛敞鎰忎竴浜汣++涓叧閿瓧銆?br />
鍙橀噺鐨勫垵濮嬪寲錛?br /> int ival(1024); //鐩存帴鍒濆鍖?br /> int ival = 1024; //澶嶅埗鍒濆鍖?br />
澹版槑錛堣〃鏄庡彉閲忕殑鍚嶇О鍜岀被鍨嬶級銆佸畾涔夛紙榪樿涓哄彉閲忓垎閰嶅瓨鍌ㄧ┖闂達級銆?
]]>
1銆佸熀鏈殑C++紼嬪簭
2銆?涓熀鏈殑杈撳叆杈撳嚭瀵硅薄
3銆佹敞閲婏細//銆?*..*/
4銆佹帶鍒惰鍙ワ紙while銆乫or銆乮f錛?/span>
5銆佺被綾誨瀷錛堢被鐨勭畝鍗曚粙緇嶏級
浜屻佽鐐?nbsp;
1銆佸熀鏈殑C++紼嬪簭
C++紼嬪簭鏈閲嶈鐨勬槸main鍑芥暟錛屾瘡涓狢++紼嬪簭蹇呴』鍖呭惈錛屽畠錛坢ain鍑芥暟錛夋槸鎿嶄綔緋葷粺鍞竴鑳芥樉紺鴻皟鐢ㄧ殑鍑芥暟銆?br /> 2銆?涓熀鏈殑杈撳叆杈撳嚭瀵硅薄
cin錛氭爣鍑嗚緭鍏ワ紱cout錛氭爣鍑嗚緭鍑猴紱clog錛氫駭鐢熺▼搴忔墽琛岀殑涓鑸俊鎭紱cerr錛氭爣鍑嗛敊璇紝杈撳嚭璀﹀憡鍜岄敊璇俊鎭?br /> 涓涓畝鍗曠殑杈撳叆杈撳嚭紼嬪簭錛?iostream>
#include <iostream>
int main()
{
std::cout << "Enter You Name:" << std::endl; //榪欓噷鍏堣緭鍑轟竴琛屼俊鎭?/span>
char name[50]; //瀹氫箟涓涓瓧絎﹀彉閲?/span>
std::cin >> name; //灝嗗鎴風殑杈撳叆杈撳叆鍒板彉閲忎腑
std::cout << name << ", Welecon to tiger's blog." << std::endl; //杈撳嚭
system("pause"); //鎺у埗鍦ㄦ渶鍚庢殏鍋?/span>
return 0;
}
4銆佹帶鍒惰鍙?br /> while銆乫or銆乮f涓変釜銆倃hile鏄彲浠ヨ緗棤絀峰驚鐜殑錛岃宖or鍒欐槸鏈夐檺寰幆涓敤鍒扮殑錛沬f鏄敤浜庡垽鏂腑鐨勩?br /> 5銆佺被
綾葷殑鍚嶇О銆佹垚鍛樺彉閲忋佹垚鍛樺嚱鏁般?br /> 6銆佸叾浠?br /> 瀵瑰簲std::cin >> i 榪欎釜璇彞錛屽畠榪斿洖鐨勬槸涓猚in鐨勬搷浣滅錛屽嵆瀵逛簬while (std::cin >> i) 鐨勮繖涓驚鐜腑錛岄獙璇佺殑鏄痗in榪欎釜瀵硅薄錛屽鏋滈亣鍒版枃浠剁粨鏉熺鎴栨棤鏁堣緭鍏ユ椂錛岃繖涓猚in瀵硅薄鏄棤鏁堢殑錛岃繖while鍒ゆ柇涓氨鏄痜alse銆?br />
]]>
]]>