c程序main函數參數

Ⅰ main鍑芥暟鐨勫弬鏁

C紼嬪簭鏈澶х殑鐗圭偣灝辨槸鎵鏈夌殑紼嬪簭閮芥槸鐢ㄥ嚱鏁版潵瑁呴厤鐨勩俶ain()縐頒箣涓轟富鍑芥暟錛屾槸鎵鏈夌▼
搴忚繍琛岀殑鍏ュ彛銆傚叾浣欏嚱鏁板垎涓烘湁鍙傛垨鏃犲弬涓ょ嶏紝鍧囩敱main()鍑芥暟鎴栧叾瀹冧竴鑸鍑芥暟璋冪敤錛岃嫢璋冪敤
鐨勬槸鏈夊弬鍑芥暟錛屽垯鍙傛暟鍦ㄨ皟鐢ㄦ椂浼犻掋 intmain(void)//鏁存暟綾誨瀷涓誨嚱鏁(鏃犵被鍨){...y1=f1(x1,x2);//璧嬪艱繃紼...}f1(inta,intb)//f1(鏁存暟綾誨瀷a,鏁存暟綾誨瀷b){//鐧懼害鐧劇戠ず渚嬩唬鐮.....Y2=f2(x3,x4);//璧嬪艱繃紼//鐧懼害鐧劇戠ず渚嬩唬鐮亇f2(intm,intn)//f2(鏁存暟綾誨瀷m,鏁存暟綾誨瀷n){//鐧懼害鐧劇戠ず渚嬩唬鐮亇鍦ㄥ墠闈㈣劇▼鐨勫︿範涓錛屽筸ain()鍑芥暟濮嬬粓浣滀負涓昏皟鍑芥暟澶勭悊錛屼篃灝辨槸璇達紝鍏佽竚ain錛堬級璋冪敤
鍏跺畠鍑芥暟騫朵紶閫掑弬鏁般備簨瀹炰笂錛宮ain()鍑芥暟鏃㈠彲浠ユ槸鏃犲弬鍑芥暟錛屼篃鍙浠ユ槸鏈夊弬鐨勫嚱鏁般傚逛簬鏈
鍙傜殑褰㈠紡鏉ヨ達紝灝遍渶瑕佸悜鍏朵紶閫掑弬鏁般
鎴戜滑鍏堢湅涓涓媘ain()鍑芥暟鐨勫甫鍙傜殑褰㈠紡錛 int銆main(intargc,char**argv)//鏁存暟綾誨瀷涓誨嚱鏁(鏁存暟綾誨瀷緇熻″弬鏁頒釜鏁,瀛楃︾被鍨*鏁扮粍鎸囬拡鑷沖瓧絎[]){//鐧懼害鐧劇戠ず渚嬩唬鐮......}浠庡嚱鏁板弬鏁扮殑褰㈠紡涓婄湅錛屽寘鍚涓涓鏁村瀷鍜屼竴涓鎸囬拡鏁扮粍銆傚綋涓涓狢鐨勬簮紼嬪簭緇忚繃緙栬瘧銆侀摼鎺ュ悗錛屼細鐢熸垚鎵╁睍鍚嶄負.EXE鐨勫彲鎵ц屾枃浠訛紙瀵箇indows鎿嶄綔緋葷粺鑰岃█錛夛紝榪欐槸鍙浠ュ湪鎿嶄綔緋葷粺涓嬬洿鎺ヨ繍琛岀殑鏂囦歡錛屾崲鍙ヨ瘽璇達紝灝辨槸鐢辯郴緇熸潵鍚鍔ㄨ繍琛岀殑銆傚筸ain()鍑芥暟鏃㈢劧涓嶈兘鐢卞叾瀹冨嚱鏁拌皟鐢ㄥ拰浼犻掑弬鏁幫紝灝卞彧鑳界敱
緋葷粺鍦ㄥ惎鍔ㄨ繍琛屾椂浼犻掑弬鏁頒簡銆
鍦ㄦ搷浣滅郴緇熺幆澧冧笅錛屼竴鏉″畬鏁寸殑榪愯屽懡浠ゅ簲鍖呮嫭涓ら儴鍒嗭細鍛戒護涓庣浉搴旂殑鍙傛暟銆傚叾鏍煎紡涓猴細
鍛戒護鍙傛暟1鍙傛暟2....鍙傛暟nt;
姝ゆ牸寮忎篃縐頒負鍛戒護琛屻傚懡浠よ屼腑鐨勫懡浠ゅ氨鏄鍙鎵ц屾枃浠剁殑鏂囦歡鍚嶏紝鍏跺悗鎵璺熷弬鏁伴渶鐢ㄧ┖鏍煎垎闅旓紝騫朵負瀵瑰懡浠ょ殑榪涗竴姝ヨˉ鍏咃紝涔熷嵆鏄浼犻掔粰main()鍑芥暟鐨勫弬鏁般
鍛戒護琛屼笌main()鍑芥暟鐨勫弬鏁板瓨鍦ㄥ備笅鐨勫叧緋伙細
璁懼懡浠よ屼負錛歱rogram str1 str2 str3 str4 str5
鍏朵腑program涓烘枃浠跺悕錛屼篃灝辨槸涓涓鐢眕rogram.c緇忕紪璇戙侀摼鎺ュ悗鐢熸垚鐨勫彲鎵ц屾枃浠秔rogram.exe錛屽叾鍚庡悇璺5涓鍙傛暟銆傚筸ain()鍑芥暟鏉ヨ達紝瀹冪殑鍙傛暟argc璁板綍浜嗗懡浠よ屼腑鍛戒護涓庡弬鏁扮殑涓鏁幫紝鍏6涓錛屾寚閽堟暟緇勭殑澶у皬鐢卞弬鏁癮rgc鐨勫煎喅瀹氾紝鍗充負char*argv[6]錛屾寚閽堟暟緇勭殑鍙栧兼儏鍐靛傚浘6-15鎵紺恆

鏁扮粍鐨勫悇鎸囬拡鍒嗗埆鎸囧悜涓涓瀛楃︿覆銆傚簲褰撳紩璧鋒敞鎰忕殑鏄鎺ユ敹鍒扮殑鎸囬拡鏁扮粍鐨勫悇鎸囬拡鏄浠庡懡浠よ岀殑寮濮嬫帴鏀剁殑錛岄栧厛鎺ユ敹鍒扮殑鏄鍛戒護錛屽叾鍚
鎵嶆槸鍙傛暟銆
涓嬮潰鐢ㄥ疄渚嬫潵璇存槑甯﹀弬鏁扮殑main()鍑芥暟鐨勬ｇ『浣跨敤銆
[渚6-29] 鍒╃敤鍥懼艦搴撳嚱鏁扮粯鍒朵竴涓鍙樺寲鐨勭幆銆傚畠鏄鎶婁竴涓鍗婂緞涓篟 1鐨勫渾鍛ㄥ垎鎴恘浠斤紝鐒
鍚庝互姣忎釜絳夊垎鐐逛負鍦嗗績錛屼互R s涓哄崐寰勭敾n涓鍦嗭紙鍏充簬浣滃浘鐨勮︾粏鐞嗚烘湰鏁欐潗絎9絝犵1鑺備綔浜嗕笓
闂ㄤ粙緇嶏紝榪欓噷鍙浣滅畝鍗曞垎鏋愶級銆傚埄鐢╩ a i n ( 錛夊嚱鏁扮殑甯﹀弬鏁板艦寮忥紝鎴戜滑鍙浠ヤ粠閿鐩樹互鍛戒護琛岀殑鏂
寮忚緭鍏R 1鍜孯 s鍙婂睆騫曠殑鑳屾櫙鑹層 #include<graphics.h>//鍖呭惈鍥懼艦搴撳嚱鏁扮殑澶存枃浠#include<math.h>#definepi3.1415926intmain(intargc錛宑har**argv){intx,y,r1,rs,color;doublea;intgdriver=DETECT,gmode;initgraph(&gdriver,&gmode,"..\bgi")//鍚鍔ㄥ浘褰㈠伐浣滄柟寮弐1=atoi(argv[1]);//璁＄畻鍩虹鍦嗗崐寰剅s=atoi(argv[2]);//璁＄畻鍚屽績鍦嗗崐寰刢olor=atoi(argv[3]);//鑳屾櫙鑹瞔leardevice();//娓呴櫎鍥懼艦灞忓箷setbkcolor(color);//璁劇疆鑳屾櫙鑹瞫etcolor鈶鳳紱//璁劇疆鍥懼艦鏄劇ず棰滆壊for(a=0;a<=2*pi;a+=pi/18)//緇樺埗鍚屽績鍦唟x=r1*cos(a)+320;y=r1*sin(a)+240;circle(x,y,rs);//浠ュ渾蹇冨潗鏍囦負x銆亂錛屽崐寰勪負rs鐢誨渾}getch();//絳夊緟鎸夐敭緇х畫closegraph();//鍏抽棴鍥懼艦宸ヤ綔鏂瑰紡return0;}鑻ョ▼搴忓悕涓篖6-29.c錛岀粡緙栬瘧銆佽繛緇撶敓鎴愬彲鎵ц屾枃浠禠6-29.exe銆傚湪鎿嶄綔緋葷粺鐨勭幆澧冧笅榪愯岀▼搴忥紝鍛戒護琛屾柟寮忎負錛
鍏蜂綋姝ラわ細
1銆乄in + R鎵撳紑榪愯岋紱
2銆佽緭鍏cmd鎵撳紑鍛戒護琛岋紱
3銆佽繘鍏ュ埌瑕佹墽琛岀殑exe鏂囦歡鎵鍦ㄧ洰褰曪紝濡傝佽佹墽琛孍:紼嬪簭璁捐Ctest.exe鏂囦歡錛屽垯杈撳叆E:鍥炶濺錛堟敞鎰忥細濡傛灉瑕佹洿鏀瑰叾浠栫洏鐩褰曞繀欏婚栧厛榪涘叆瑕佽繘鍏ョ洏鐨勬牴鐩褰曪紝渚嬪傝繘鍏E鐩樺垯杈撳叆E:涓嶇敤杈撳叆cd E:錛夎繘鍏E鐩樻牴鐩褰曪紝鍐嶈緭鍏cd E:紼嬪簭璁捐 鍒欒繘鍏ヤ簡褰撳墠鐩褰曪紝鏈鍚庡氨鍙浠ヨ緭鍏ュ弬鏁頒簡錛屼緥濡侰test yishi weban鍥炶濺鍗沖彲錛圕test涓鴻佹墽琛岀殑鍙鎵ц屾枃浠訛紝鍚庨潰涓や釜涔熶負瑕佷紶閫掔粰main鍑芥暟鐨勫弬鏁幫級錛
l6-29 40 20 3
鍒欏懡浠よ屼笌main錛堬級鍑芥暟鐨勫弬鏁版湁濡傚浘6-16鎵紺虹殑鍏崇郴
鍥6-16涓錛宎rgv[0]鏄紼嬪簭鍚嶏紝argv[1]鏄痳1鐨勫礆紝
argv[2]鏄痳s鐨勫礆紝argv[3]鏄灞忓箷鐨勮儗鏅鑹層
鐢變簬鎸囬拡鏁扮粍鍧囧瓨鏀懼瓧絎︿覆錛屾墍闇鐨勫渾鍗婂緞鍙婅儗鏅
鑹插僵閫氳繃atoi錛堬級鍑芥暟杞鎹涓烘暣鍨嬨
閫氳繃甯﹀弬鏁扮殑main錛堬級鍑芥暟錛屾垜浠鍙浠ヤ負鑷宸辯殑紼嬪簭璁劇疆鍙ｄ護錛屽湪榪愯岀▼搴忕殑鍛戒護琛屼腑緇欏嚭鎵闇鐨勫彛浠わ紝姝ｇ『鍒欑戶緇錛屽惁鍒欓鍑恆傜▼搴忓浘褰㈣緭鍑哄傚浘6-17鎵紺恆

[渚6-30]灝嗕笂榪扮▼搴忎綔淇鏀癸紝鍦ㄧ▼搴忕殑鍏ュ彛澶勬坊緗瀵嗙爜錛岃嫢緇欏畾瀵嗙爜姝ｇ『錛屽垯鏄劇ず鍥
褰銆 #include<graphics.h>#include<math.h>#definepi3.1415926intmain(intargc,char**argv){intx,y,r1,rs,color;doublea;intgdriver=DETECT,gmode;if(strcmp(argv[1],"pass")!=0)//璁劇疆鍙ｄ護鐨勬瘮杈儃printf("passworderror! ");exit(0);}initgraph(&gdriver,&gmode,"..\bgi");r1=atoi(argv[2]);rs=atoi(argv[3]);color=atoi(argv[4]);cleardevice();setbkcolor(color);setcolor鈶鳳紱for(a=0;a<=2*pi;a+=pi/18){x=r1*cos(a)+320;y=r1*sin(a)+240;circle(x,y,rs);}getch();closegraph();return0;}鍦ㄦ搷浣滅郴緇熺殑鐜澧冧笅榪愯岀▼搴忥紝 鍛戒護琛屼腑澧炲姞鍙ｄ護鈥減ass鈥濓紝鍛戒護琛屾柟寮忎負錛
l6-30 pass 20 40 3
鎸囬拡鏁扮粍鐨勫瓨鍌ㄥ瓧絎︿覆濡傚浘6-18鎵紺恆

鑻ョ粰瀹氬瓧絎︿覆argv[1]鐨勫兼槸pass錛屽垯紼嬪簭姝ｇ『榪愯岋紝鍚﹀垯紼嬪簭閫鍑恆傚彛浠ゆｇ『鐨勬儏鍐典笅錛屾樉紺虹殑鍥懼艦涓哄浘6-17涓鐨勪竴涓銆

Ⅱ C璇璦涓鐨刴ain錛堬級鍑芥暟

涓銆佸畾涔

main鍑芥暟,鍙堢О涓誨嚱鏁,鏄紼嬪簭鎵ц岀殑璧風偣錛宮ain鏄鐩稿規潵璇寸殑,濡傚悓闊沖︾悊璁轟箣涓昏皟浜庢硾闊,娉涢煶鍗崇▼搴忎腑鐨勯櫎main涔嬪栫殑鍏朵粬鍑芥暟錛岃繋鍚堜漢浠鐨勬濊冩柟寮忚岀敓鎴愮殑鑰岄潪蹇呭畾鐨勬ā寮.鏈変富鏈夋★紝鎵ц岃搗鏉ユ潯娓呯紩鏋愶紝鏃㈠彲灝嗙▼搴忔ā鍧楀寲鍙堝疄鐜頒簡涓涓闂鍚堢殑鏁翠綋銆

浜屻乵ain()鍑芥暟鐨勫艦寮

鍦ㄦ渶鏂扮殑 C99 鏍囧噯涓錛屽彧鏈変互涓嬩袱縐嶅畾涔夋柟寮忔槸姝ｇ『鐨勶細

int main(void) /*鏃犲弬鏁板艦寮*/
{
...
return 0;
}
int main(int argc, char *argv[]) /*甯﹀弬鏁板艦寮*/
{
...
return 0;
}
int鎸囨槑浜唌ain()鍑芥暟鐨勮繑鍥炵被鍨錛屽嚱鏁板悕鍚庨潰鐨勫渾鎷鍙蜂竴鑸鍖呭惈浼犻掔粰鍑芥暟鐨勪俊鎮銆倂oid琛ㄧず娌℃湁緇欏嚱鏁頒紶閫掑弬鏁般

涓夈乵ain()鍑芥暟鐨勮繑鍥炲

浠庡墠闈㈡垜浠鐭ラ亾main()鍑芥暟鐨勮繑鍥炲肩被鍨嬫槸int鍨嬬殑錛岃岀▼搴忔渶鍚庣殑 return 0; 姝ｄ笌涔嬮仴鐩稿懠搴旓紝0灝辨槸main()鍑芥暟鐨勮繑鍥炲箋傞偅涔堣繖涓0榪斿洖鍒伴偅閲屽憿錛熻繑鍥炵粰鎿嶄綔緋葷粺錛岃〃紺虹▼搴忔ｅ父閫鍑恆

鍥犱負return璇鍙ラ氬父鍐欏湪紼嬪簭鐨勬渶鍚庯紝涓嶇¤繑鍥炰粈涔堝礆紝鍙瑕佸埌杈捐繖涓姝ワ紝璇存槑紼嬪簭宸茬粡榪愯屽畬姣曘傝宺eturn鐨勪綔鐢ㄤ笉浠呭湪浜庤繑鍥炰竴涓鍊礆紝榪樺湪浜庣粨鏉熷嚱鏁般

鍥涖乵ain()鍑芥暟鐨勫弬鏁

C緙栬瘧鍣ㄥ厑璁竚ain()鍑芥暟娌℃湁鍙傛暟錛屾垨鑰呮湁涓や釜鍙傛暟錛堟湁浜涘疄鐜板厑璁告洿澶氱殑鍙傛暟錛屼絾榪欏彧鏄瀵規爣鍑嗙殑鎵╁睍錛夈傝繖涓や釜鍙傛暟錛屼竴涓鏄痠nt綾誨瀷錛屼竴涓鏄瀛楃︿覆綾誨瀷銆

絎涓涓鍙傛暟鏄鍛戒護琛屼腑鐨勫瓧絎︿覆鏁般傛寜鐓ф儻渚嬶紙浣嗕笉鏄蹇呴』鐨勶級錛岃繖涓猧nt鍙傛暟琚縐頒負argc錛坅rgument count錛夈傜浜屼釜鍙傛暟鏄涓涓鎸囧悜瀛楃︿覆鐨勬寚閽堟暟緇勩傚懡浠よ屼腑鐨勬瘡涓瀛楃︿覆琚瀛樺偍鍒板唴瀛樹腑錛屽苟涓斿垎閰嶄竴涓鎸囬拡鎸囧悜瀹冦

鎸夌収鎯渚嬶紝榪欎釜鎸囬拡鏁扮粍琚縐頒負argv錛坅rgument value錛夈傜郴緇熶嬌鐢ㄧ┖鏍兼妸鍚勪釜瀛楃︿覆鏍煎紑銆備竴鑸鎯呭喌涓嬶紝鎶婄▼搴忔湰韜鐨勫悕瀛楄祴鍊肩粰argv[0]錛屾帴鐫錛屾妸鏈鍚庣殑絎涓涓瀛楃︿覆璧嬬粰argv[1]錛岀瓑絳夈

鎵╁睍璧勬枡

C++涓鐨刴ain鍑芥暟鐨勫簲鐢錛

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鉶界劧main鍑芥暟鍙浠ヤ綔涓虹粨鏋勪綋鎴栬呯被鐨勬垚鍛樺嚱鏁幫紝浣嗙浉搴斿湴浼氬け鍘諱綔涓虹▼搴忓嚭鍏ュ彛鐨勫姛鑳姐侰++涓鍏ㄥ矓main鍑芥暟鐨勪功鍐欐牸寮忎笌C璇璦瀹屽叏鐩稿悓錛屽姛鑳戒篃瀹屽叏鐩稿悓錛屼笖鍚屼竴C++紼嬪簭鍚屾牱鍙鑳芥湁涓涓鍏ㄥ矓main鍑芥暟銆

鍙傝冭祫鏂欙細鐧懼害鐧劇戔斺攎ain鍑芥暟