发表于 2009-1-5 19:48
| 
C璇█鏁欑▼1锛5
鍙戝竷: 2008-6-26 21:04 | 浣滆: admin | 鏌ョ湅: 11娆
(2) 鍦╥f璇彞涓紝鏉′欢鍒ゆ柇琛ㄨ揪寮忓繀椤荤敤鎷彿鎷捣鏉ワ紝 鍦ㄨ鍙ヤ箣鍚庡繀椤诲姞鍒嗗彿銆
(3) 鍦╥f璇彞鐨勪笁绉嶅舰寮忎腑锛屾墍鏈夌殑璇彞搴斾负鍗曚釜璇彞锛屽鏋滆鎯冲湪婊¤冻鏉′欢鏃舵墽琛屼竴缁(澶氫釜)璇彞锛屽垯蹇呴』鎶婅繖涓缁勮鍙ョ敤{} 鎷捣鏉ョ粍鎴愪竴涓鍚堣鍙ャ備絾瑕佹敞鎰忕殑鏄湪}涔嬪悗涓嶈兘鍐嶅姞鍒嗗彿銆
渚嬪锛
if(a>b){
a++;
b++;
}
else{ a=0;
b=10;
}
锝夛絾璇彞鐨勫祵濂
褰搃f璇彞涓殑鎵ц璇彞鍙堟槸if璇彞鏃讹紝鍒欐瀯鎴愪簡if 璇彞宓屽鐨勬儏褰€傚叾涓鑸舰寮忓彲琛ㄧず濡備笅锛
if(琛ㄨ揪寮)
if璇彞锛
鎴栬呬负
if(琛ㄨ揪寮)
if璇彞锛
else
if璇彞锛
鍦ㄥ祵濂楀唴鐨刬f璇彞鍙兘鍙堟槸if-else鍨嬬殑锛岃繖灏嗕細鍑虹幇澶氫釜if鍜屽涓猠lse閲嶅彔鐨勬儏鍐碉紝杩欐椂瑕佺壒鍒敞鎰廼f鍜宔lse鐨勯厤瀵归棶棰樸備緥濡傦細
if(琛ㄨ揪寮1)
if(琛ㄨ揪寮2)
璇彞1锛
else
璇彞2锛
鍏朵腑鐨別lse绌剁珶鏄笌鍝竴涓猧f閰嶅鍛?
搴旇鐞嗚В涓猴細銆銆銆杩樻槸搴旂悊瑙ｄ负锛
if(琛ㄨ揪寮1) 銆銆銆if(琛ㄨ揪寮1)
銆if(琛ㄨ揪寮2) 銆銆銆銆if(琛ㄨ揪寮2)
銆銆璇彞1锛 銆銆銆銆銆銆璇彞1锛
else 銆銆銆銆銆銆銆 else
銆銆璇彞2锛 銆銆銆銆銆銆璇彞2锛
涓轰簡閬垮厤杩欑浜屼箟鎬э紝锛ｈ瑷瑙勫畾锛宔lse 鎬绘槸涓庡畠鍓嶉潰鏈杩戠殑if閰嶅锛屽洜姝ゅ涓婅堪渚嬪瓙搴旀寜鍓嶄竴绉嶆儏鍐电悊瑙ｃ
void main(){
int a,b;
printf("please input A,B: ");
scanf("%d%d",&a,&b);
if(a!=b)
if(a>b) printf("A>B\n");
else printf("A else printf("A=B\n"); } 姣旇緝涓や釜鏁扮殑澶у皬鍏崇郴銆 printf("please input A,B: "); scanf("%d%d",&a,&b); if(a!=b) if(a>b) printf("A>B\n"); else printf("A else printf("A=B\n"); 鏈緥涓敤浜唅f璇彞鐨勫祵濂楃粨鏋勩 閲囩敤宓屽缁撴瀯瀹炶川涓婃槸涓轰簡杩涜澶氬垎鏀夋嫨锛屼緥3.16瀹為檯涓婃湁涓夌閫夋嫨鍗矨>B銆丄 void main(){ int a,b; printf("please input A,B: "); scanf("%d%d",&a,&b); if(a==b) printf("A=B\n"); else if(a>b) printf("A>B\n"); else printf("A } 鏉′欢杩愮畻绗﹀拰鏉′欢琛ㄨ揪寮 濡傛灉鍦ㄦ潯浠惰鍙ヤ腑锛屽彧鎵ц鍗曚釜鐨勮祴鍊艰鍙ユ椂锛 甯稿彲浣跨敤鏉′欢琛ㄨ揪寮忔潵瀹炵幇銆備笉浣嗕娇绋嬪簭绠娲侊紝涔熸彁楂樹簡杩愯鏁堢巼銆 鏉′欢杩愮畻绗︿负?鍜岋細锛屽畠鏄竴涓笁鐩繍绠楃锛屽嵆鏈変笁涓弬涓庤繍绠楃殑閲忋傜敱鏉′欢杩愮畻绗︾粍鎴愭潯浠惰〃杈惧紡鐨勪竴鑸舰寮忎负锛 琛ㄨ揪寮1? 琛ㄨ揪寮2锛 琛ㄨ揪寮3 鍏舵眰鍊艰鍒欎负锛氬鏋滆〃杈惧紡1鐨勫间负鐪燂紝鍒欎互琛ㄨ揪寮2 鐨勫间綔涓烘潯浠惰〃杈惧紡鐨勫硷紝鍚﹀垯浠ヨ〃杈惧紡2鐨勫间綔涓烘暣涓潯浠惰〃杈惧紡鐨勫笺 鏉′欢琛ㄨ揪寮忛氬父鐢ㄤ簬璧嬪艰鍙ヤ箣涓 渚嬪鏉′欢璇彞锛 if(a>b) max=a; else max=b; 鍙敤鏉′欢琛ㄨ揪寮忓啓涓 max=(a>b)?a:b; 鎵ц璇ヨ鍙ョ殑璇箟鏄細濡俛>b涓虹湡锛屽垯鎶奱璧嬩簣max锛屽惁鍒欐妸b 璧嬩簣max銆 浣跨敤鏉′欢琛ㄨ揪寮忔椂锛岃繕搴旀敞鎰忎互涓嬪嚑鐐癸細 1. 鏉′欢杩愮畻绗︾殑杩愮畻浼樺厛绾т綆浜庡叧绯昏繍绠楃鍜岀畻鏈繍绠楃锛屼絾楂樹簬璧嬪肩銆傚洜姝 max=(a>b)?a:b鍙互鍘绘帀鎷彿鑰屽啓涓 max=a>b?a:b 2. 鏉′欢杩愮畻绗?鍜岋細鏄竴瀵硅繍绠楃锛屼笉鑳藉垎寮鍗曠嫭浣跨敤銆 3. 鏉′欢杩愮畻绗︾殑缁撳悎鏂瑰悜鏄嚜鍙宠嚦宸︺ 渚嬪锛 a>b?a:c>d?c:d搴旂悊瑙ｄ负 a>b?a:(c>d?c:d) 杩欎篃灏辨槸鏉′欢琛ㄨ揪寮忓祵濂楃殑鎯呭舰锛屽嵆鍏朵腑鐨勮〃杈惧紡3鍙堟槸涓涓潯 浠惰〃杈惧紡銆 void main(){ int a,b,max; printf("\n input two numbers: "); scanf("%d%d",&a,&b); printf("max=%d",a>b?a:b); } 鐢ㄦ潯浠惰〃杈惧紡瀵逛笂渚嬮噸鏂扮紪绋嬶紝杈撳嚭涓や釜鏁颁腑鐨勫ぇ鏁般 锝擄綏锝夛綌锝冿綀璇彞 锛ｈ瑷杩樻彁渚涗簡鍙︿竴绉嶇敤浜庡鍒嗘敮閫夋嫨鐨剆witch璇彞锛 鍏朵竴鑸舰寮忎负锛 switch(琛ㄨ揪寮){ case甯搁噺琛ㄨ揪寮1: 璇彞1; case甯搁噺琛ㄨ揪寮2: 璇彞2; 鈥 case甯搁噺琛ㄨ揪寮弉: 璇彞n; default : 璇彞n+1; } 鍏惰涔夋槸锛氳绠楄〃杈惧紡鐨勫笺 骞堕愪釜涓庡叾鍚庣殑甯搁噺琛ㄨ揪寮忓肩浉姣旇緝锛屽綋琛ㄨ揪寮忕殑鍊间笌鏌愪釜甯搁噺琛ㄨ揪寮忕殑鍊肩浉绛夋椂锛 鍗虫墽琛屽叾鍚庣殑璇彞锛岀劧鍚庝笉鍐嶈繘琛屽垽鏂紝缁х画鎵ц鍚庨潰鎵鏈塩ase鍚庣殑璇彞銆 濡傝〃杈惧紡鐨勫间笌鎵鏈塩ase鍚庣殑甯搁噺琛ㄨ揪寮忓潎涓嶇浉鍚屾椂锛屽垯鎵цdefault鍚庣殑璇彞銆 void main(){ int a; printf("input integer number: "); scanf("%d",&a); switch (a){ case 1:printf("Monday\n"); case 2:printf("Tuesday\n"); case 3:printf("Wednesday\n"); case 4:printf("Thursday\n"); case 5:printf("Friday\n"); case 6:printf("Saturday\n"); case 7:printf("Sunday\n"); default:printf("error\n"); } } 鏈▼搴忔槸瑕佹眰杈撳叆涓涓暟瀛楋紝杈撳嚭涓涓嫳鏂囧崟璇嶃備絾鏄綋杈撳叆3涔嬪悗锛屽嵈鎵ц浜哻ase3浠ュ強浠ュ悗鐨勬墍鏈夎鍙ワ紝杈撳嚭浜哤ednesday 鍙婁互鍚庣殑鎵鏈夊崟璇嶃傝繖褰撶劧鏄笉甯屾湜鐨勩備负浠涔堜細鍑虹幇杩欑鎯呭喌鍛?杩欐伆鎭板弽搴斾簡switch璇彞鐨勪竴涓壒鐐广傚湪switch璇彞涓紝鈥渃ase 甯搁噺琛ㄨ揪寮忊濆彧鐩稿綋浜庝竴涓鍙ユ爣鍙凤紝 琛ㄨ揪寮忕殑鍊煎拰鏌愭爣鍙风浉绛夊垯杞悜璇ユ爣鍙锋墽琛岋紝浣嗕笉鑳藉湪鎵ц瀹岃鏍囧彿鐨勮鍙ュ悗鑷姩璺冲嚭鏁翠釜switch 璇彞锛屾墍浠ュ嚭鐜颁簡缁х画鎵ц鎵鏈夊悗闈ase璇彞鐨勬儏鍐点 杩欐槸涓庡墠闈粙缁嶇殑if璇彞瀹屽叏涓嶅悓鐨勶紝搴旂壒鍒敞鎰忋備负浜嗛伩鍏嶄笂杩版儏鍐碉紝 锛ｈ瑷杩樻彁渚涗簡涓绉峛reak璇彞锛屼笓鐢ㄤ簬璺冲嚭switch璇彞锛宐reak 璇彞鍙湁鍏抽敭瀛梑reak锛屾病鏈夊弬鏁般傚湪鍚庨潰杩樺皢璇︾粏浠嬬粛銆備慨鏀逛緥棰樼殑绋嬪簭锛屽湪姣忎竴case璇彞涔嬪悗澧炲姞break 璇彞锛 浣挎瘡涓娆℃墽琛屼箣鍚庡潎鍙烦鍑簊witch璇彞锛屼粠鑰岄伩鍏嶈緭鍑轰笉搴旀湁鐨勭粨鏋溿 void main(){ int a; printf("input integer number: "); scanf("%d",&a); switch (a){ case 1:printf("Monday\n");break; case 2:printf("Tuesday\n"); break; case 3:printf("Wednesday\n");break; case 4:printf("Thursday\n");break; case 5:printf("Friday\n");break; case 6:printf("Saturday\n");break; case 7:printf("Sunday\n");break; default:printf("error\n"); } } 鍦ㄤ娇鐢╯witch璇彞鏃惰繕搴旀敞鎰忎互涓嬪嚑鐐癸細 1.鍦╟ase鍚庣殑鍚勫父閲忚〃杈惧紡鐨勫间笉鑳界浉鍚岋紝鍚﹀垯浼氬嚭鐜伴敊璇 2.鍦╟ase鍚庯紝鍏佽鏈夊涓鍙ワ紝鍙互涓嶇敤{}鎷捣鏉ャ 3.鍚刢ase鍜宒efault瀛愬彞鐨勫厛鍚庨『搴忓彲浠ュ彉鍔紝鑰屼笉浼氬奖鍝嶇▼搴忔墽琛岀粨鏋溿 4.default瀛愬彞鍙互鐪佺暐涓嶇敤銆傜▼搴忎妇渚 杈撳叆涓変釜鏁存暟锛岃緭鍑烘渶澶ф暟鍜屾渶灏忔暟銆 void main(){ int a,b,c,max,min; printf("input three numbers: "); scanf("%d%d%d",&a,&b,&c); if(a>b) {max=a;min=b;} else {max=b;min=a;} if(max max=c; else if(min>c) min=c; printf("max=%d\nmin=%d",max,min); }
