c语言，scanf函数输入时为什么要输入“↙”箭头啊？？？还有这个箭头怎么输入啊？？？ C语言中用scanf函数输入字符时，为什么要在输入控制符%c...
C\u8bed\u8a00\u7f16\u5199\u7a0b\u5e8f\u65f6\u7bad\u5934\u600e\u4e48\u8f93\u5165\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f\uff1fC\u8bed\u8a00\u4e2d\u4f7f\u7528\u7684\u7bad\u5934\u7b26\u53f7\u4e3a->\u3002\u8be5\u64cd\u4f5c\u7b26\u5e76\u975e\u662f\u4e00\u4e2a\u7b26\u53f7\uff0c\u800c\u662f\u7531\u51cf\u53f7(-)\u548c\u5927\u4e8e\u53f7(>)\u5171\u540c\u7ec4\u6210\u7684\u3002
\u6240\u4ee5\u5728\u6253->\u65f6\uff0c\u9700\u8981\u5148\u6253-,\u4f4d\u4e8e\u952e\u76d8\u53f3\u4e0a\u89d2\uff0c0\u548c=\u4e4b\u95f4\uff0c\u76f4\u63a5\u70b9\u51fb\u5373\u53ef\u3002\u7136\u540e\u518d\u8f93\u5165>\u53f7\uff0c\u5728\u952e\u76d8\u53f3\u4e0b\u89d2\uff0c\u53f3shift\u5de6\u8fb9\uff0c\u9017\u53f7\u548c\u659c\u7ebf/\u4e4b\u95f4\uff0c\u4e0e\u53e5\u53f7\u5728\u540c\u4e00\u4e2a\u6309\u952e\u4e0a\uff0c\u8f93\u5165\u65f6\u9700\u8981\u6309shift\u540c\u65f6\u6309\u8be5\u952e\u3002
->\u4f5c\u7528\u4e3a\uff0c\u53d6\u7ed3\u6784\u4f53\u6307\u9488\u53d8\u91cf\u6307\u5411\u7684\u5143\u7d20\u503c\u3002
\u5982\u7ed3\u6784\u4f53\u4e3a
struct test{ int a;};\u5b9a\u4e49\u6709\u6307\u9488
struct test *p;
\u8981\u53d6p\u6307\u5411\u533a\u57df\u4e2d\u7684\u5143\u7d20a\u503c\uff0c\u53ef\u4ee5\u5199\u6210\uff1a
p->a
%c\u524d\u9762\u7684\u7a7a\u683c\u5c31\u662f\u7528\u6765\u5c4f\u853d\u7a7a\u767d\u7b26\u7684\uff0c
\u9996\u5148\u5fc5\u987b\u8981\u77e5\u9053C\u8bed\u8a00 scanf() \u51fd\u6570\u7684\u7279\u6027\uff0c\u4ee5\u53cascanf()\u4e0e\u7f13\u51b2\u533a\u3001\u6807\u51c6\u8f93\u5165\u6d41\u4e4b\u95f4\u7684\u8054\u7cfb\u3002\u5728\u6b64\u4e4b\u524d\uff0c\u5148\u4ecb\u7ecd\u4e24\u4e2a\u4e13\u4e1a\u672f\u8bed\u3002
1.\u7f13\u51b2\u533a
\u7f13\u51b2\u533a\u662f\u4e00\u5757\u5b58\u653e\u4e34\u65f6\u8f93\u5165\u6570\u636e\u7684\u5185\u5b58\uff0c\u6211\u4eec\u5728\u952e\u76d8\u4e0a\u8f93\u5165\u6570\u636e\u4e4b\u6240\u4ee5\u4e0d\u4f1a\u9a6c\u4e0a\u663e\u793a\uff0c\u5c31\u662f\u56e0\u4e3a\u6570\u636e\u5b58\u653e\u5728\u4e86\u7f13\u51b2\u533a\uff0c\u5728\u4e0a\u9762\u4f8b\u5b50\u4e2d\uff0c\u5f53\u6211\u4eec\u6309\u4e0b\u56de\u8f66\u952e\u540e\uff0c\u7f13\u51b2\u533a\u7684\u6570\u636e\u4f1a\u4f20\u9001\u5230\u6807\u51c6\u8f93\u5165\u6d41\u3002
2.\u6807\u51c6\u8f93\u5165\u6d41
\u6807\u51c6\u8f93\u5165\u6d41\uff08stdin\uff09\u662f\u6587\u4ef6\u6307\u9488\uff0cscanf()\u5c31\u662f\u4ece\u6807\u51c6\u8f93\u5165\u6d41\u6216\u8bb8\u6570\u636e\u3002
\u4ee5\u4e0a\u9762\u4ee3\u7801\u4e3a\u4f8b\uff0c\u5f53\u6267\u884c\u5230scanf()\u65f6\uff0c
\u7535\u8111\u5f00\u59cb\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a
\u5f00\u59cb\u7b49\u5f85\u7528\u6237\u8f93\u5165
2.\u5f53\u6211\u4eec\u8f93\u5165\u6570\u636e\uff0c\u5728\u6309\u4e0b\u56de\u8f66\u952e\u524d\u4f1a\u628a\u6570\u636e\u50a8\u5b58\u5728\u7f13\u51b2\u533a\uff0c\u6309\u4e0b\u56de\u8f66\u952e\u540e\uff0c\u4f1a\u628a\u6570\u636e\u4ee5\u53ca\u6362\u884c\u7b26\uff08\n\uff09\u4e00\u8d77\u4f20\u9001\u5230\u6807\u51c6\u8f93\u5165\u6d41(stdin)\u4e2d\uff0c
scanf()\u5c31\u662f\u4ece\u6807\u51c6\u8f93\u5165\u6d41\u4e2d\u6216\u8bb8\u6570\u636e\uff0c\u4e0a\u9762\u7b2c\u4e00\u4e2ascanf()\u8981\u8bfb\u5165\u4e00\u4e2a\u6574\u6570\uff0c\u5b83\u4ece\u6807\u51c6\u8f93\u5165\u6d41\u4e2d\u67e5\u627e\uff0c\u8df3\u8fc7\u7a7a\u767d\u7b26\uff08\u7a7a\u683c\u3001\u6362\u884c\u7b26\u3001\u5236\u8868\u7b26\uff09
3.\u5982\u679c\u9047\u5230\u6570\u5b57\uff0c\u5219\u5f00\u59cb\u8bfb\u5165\uff0c\u76f4\u5230\u9047\u5230\u975e\u6570\u5b57\u7684\u5b57\u7b26\u7ed3\u675f\uff0c\u6700\u540e\u8ba1\u7b97\u8bfb\u53d6\u5230\u7684\u6570\u503c\uff0c\u50a8\u5b58\u5230\u76f8\u5173\u53d8\u91cf\u4e2d\u3002
\u4f7f\u7528scanf\u6ce8\u610f\u4e8b\u9879
1.\u53c2\u6570\u7684\u4e2a\u6570\u4e00\u5b9a\u8981\u5bf9\u5e94
2.\u8f93\u5165\u7684\u6570\u636e\u7c7b\u578b\u4e00\u5b9a\u8981\u548c\u6240\u9700\u8981\u7684\u6570\u636e\u7c7b\u578b\u4e00\u81f4
3.\u6bcf\u6b21\u8c03\u7528\u5b8cscanf\u540e\uff0c\u8bb0\u5f97\u8c03\u7528\u4e00\u4e2agetchar\uff08\uff09\u51fd\u6570
\u6269\u5c55\u8d44\u6599
1.\u51fd\u6570 scanf() \u662f\u4ece\u6807\u51c6\u8f93\u5165\u6d41stdio (\u6807\u51c6\u8f93\u5165\u8bbe\u5907\uff0c\u4e00\u822c\u6307\u5411\u952e\u76d8)\u4e2d\u8bfb\u5185\u5bb9\u7684\u901a\u7528\u5b50\u7a0b\u5e8f\uff0c\u53ef\u4ee5\u8bf4\u660e\u7684\u683c\u5f0f\u8bfb\u5165\u591a\u4e2a\u5b57\u7b26\uff0c\u5e76\u4fdd\u5b58\u5728\u5bf9\u5e94\u5730\u5740\u7684\u53d8\u91cf\u4e2d\u3002
2.\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u683c\u5f0f\u5b57\u7b26\u4e32\uff0c\u5b83\u6307\u5b9a\u4e86\u8f93\u5165\u7684\u683c\u5f0f\uff0c\u5e76\u6309\u7167\u683c\u5f0f\u8bf4\u660e\u7b26\u89e3\u6790\u8f93\u5165\u5bf9\u5e94\u4f4d\u7f6e\u7684\u4fe1\u606f\u5e76\u5b58\u50a8\u4e8e\u53ef\u53d8\u53c2\u6570\u5217\u8868\u4e2d\u5bf9\u5e94\u7684\u6307\u9488\u6240\u6307\u4f4d\u7f6e\u3002
\u6bcf\u4e00\u4e2a\u6307\u9488\u8981\u6c42\u975e\u7a7a\uff0c\u5e76\u4e14\u4e0e\u5b57\u7b26\u4e32\u4e2d\u7684\u683c\u5f0f\u7b26\u4e00\u4e00\u987a\u6b21\u5bf9\u5e94\u3002
\u53c2\u8003\u8d44\u6599
\u7f51\u9875\u94fe\u63a5
绛旓細鍙敤鍐嶅畾涔変竴涓瓧绗﹁鍙橀噺鎴栦竴涓瓧绗︿覆鏉ュ疄鐜帮紙瀛楃鍨嬪彉閲忓彧鑳藉湪杈撳叆涓涓瓧姣嶆椂鎶ラ敊(鑰屼笖杈撳叆鐨勬暟瀛楀繀椤绘槸涓浣嶆暟)锛岃屽瓧绗︿覆鍙В鍐冲嚑涔庝换浣曠被鍨嬬殑杈撳叆閿欒锛屼絾绋嬪簭杈冮夯鐑︼級锛涗笅闈㈡槸浠ュ瓧绗︿覆涓轰緥鐨勭▼搴忔锛氶鍏堣鍦ㄥ紑濮嬪畾涔変竴涓瓧绗︿覆,鍜屼竴涓緭鍏ラ敊璇殑鏍囧織鍙橀噺error;char c[20];int error;鈥︹︹o ...
绛旓細scanf鍑芥暟涓敤%d锛岃繍琛鏃惰緭鍏鏁板兼椂涓嶈鐢ㄧ┖鏍奸殧寮,灏变細鎶婁簩涓暣鏁板綋浣滄槸涓涓暣鏁帮紱骞朵笖scanf璇诲叆鏁板兼椂锛屼細鎶婂墠闈㈢殑绌烘牸鑷姩蹇界暐鐨勩備絾濡傛灉鐢%c灏变笉琛岋紝鍥犱负绌烘牸涔熸槸涓涓瓧绗︼紝涔熷彲浠ョ敤%c璇诲叆鐨勩
绛旓細鍏惰皟鐢ㄦ牸寮忎负锛scanf(鈥<鏍煎紡鍖栧瓧绗︿覆>鈥,<鍦板潃琛>)锛泂canf()鍑芥暟杩斿洖鎴愬姛璧嬪肩殑鏁版嵁椤规暟锛屽嚭閿欐椂鍒欒繑鍥濫OF锛涘叾鎺у埗涓茬敱涓夌被瀛楃鏋勬垚锛1銆佹牸寮忓寲璇存槑绗 2銆佺┖鐧界 3銆侀潪绌虹櫧绗 鏍煎紡鍖栬鏄庣 闄勫姞鏍煎紡璇存槑瀛楃琛細绌虹櫧瀛楃 绌虹櫧瀛楃浼氫娇scanf()鍑芥暟鍦ㄨ鎿嶄綔涓暐鍘杈撳叆涓殑涓涓垨澶氫釜绌虹櫧瀛楃锛岀┖鐧界...
绛旓細scanf("%c", &c1);// add a new scanf here or gets to delete " " in I(input) stream ex: scanf("%c", &c2);scanf("%c", &c2);
绛旓細绋嬪簭2 include "stdio.h"void main(){ char a;char b;scanf("%c",&a);scanf("%c",&b);printf("%d %d",a,b);} 閿洏杈撳叆 9<鍥炶溅>buffer:39H锛0AH 鍥犱负scanf浼氭寜鐓х涓涓紖c鏍煎紡鎵弿buffer锛堝彧鎵弿涓涓瓧鑺傚氨缁撴潫锛夛紝鐒跺悗鎶婃壂鎻忓埌鐨39H鐩存帴閫佸埌鍙橀噺a锛堝綋浠%d鏍煎紡璇诲嚭鏉ユ椂锛39H灏辨槸...
绛旓細鐢scanf鍑芥暟杈撳叆鏁版嵁銆俰nclude<stdio.h> void main(){ int a,b,c;scanf(鈥%d%d%d鈥,&a,&b,&c);printf(鈥%d,%d,%d\n鈥,a,b,c);} 杩愯鎯呭喌锛3 4 5 锛堝洖杞︼級 (杈撳叆a,b,c鐨勫)3锛4锛5 锛堣緭鍑篴,b,c鐨勫硷級浣跨敤scanf鍑芥暟鏃跺簲娉ㄦ剰鐨勯棶棰 :(1)scanf鍑芥暟涓殑鈥滄牸寮忔帶鍒垛濆悗闈㈠簲褰撴槸...
绛旓細scanf鏄C璇█涓殑杈撳叆鍑芥暟锛屽彲浠ヤ粠閿洏鑾峰緱鐢ㄦ埛杈撳叆锛屽拰printf杈撳嚭鍔熻兘姝ｅソ鐩稿弽銆俿canf鐨勮緭鍏ユ牸寮忔槸澶氱澶氭牱鐨勶紝浣跨敤鏃堕渶鏍规嵁鎯呭喌閫夋嫨锛屾渶甯哥敤鐨勬槸鍗佽繘鍒舵暣鏁板瀷杈撳叆锛卍銆俿canf鐨勪娇鐢ㄥ拰杈撳叆鏍煎紡 scanf("%d", &c); //杈撳叆涓涓暣鏁板苟璧嬪肩粰c銆俿canf("%d", &d); //杈撳叆涓涓暣鏁板苟璧嬪肩粰d銆俿canf("...
绛旓細1銆scanf("%d锛%d",&a,&b)锛涙寜鐓ц繖涓牸寮锛岃緭鍏鏁版嵁鐨勬椂鍊锛屽簲璇ュ姞涓婇楀彿銆傛瘮濡傝鎯宠緭鍏22 33 灏卞簲璇 22锛33銆2銆佷篃鍙互鍍忚繖鏍穝canf("%d %d",&a,&b)锛涗腑闂寸敤绌烘牸闅斿紑锛岄偅鏍峰氨鍙互鐩存帴杈撳叆 22 33浜嗐俿canf 鐨勫姛鑳界敤涓鍙ヨ瘽鏉ユ鎷氨鏄滈氳繃閿洏缁绋嬪簭涓殑鍙橀噺璧嬪尖濄傝鍑芥暟鐨勫師鍨嬩负锛歩nclude...
绛旓細1.閬囧埌绌烘牸锛屾垨"鍥炶溅"锛屾垨"璺虫牸"锛屼緥瀛愶細scantf锛"%d%d",&a,&b锛夊鏋滆繖鏍疯緭鍏ワ細12绌烘牸23褰撳a杈撳叆鏃讹紝褰曞叆浜12锛岀劧鍚庨亣鍒扮┖鏍硷紝婊¤冻鏉′欢锛屽仠姝㈠a褰曞叆锛屾墍浠鐨勫间负12 2鎸夋寚瀹氬搴︾粨鏉燂紝渚嬪"%3d"锛屽彧鍙栧墠3鍒 3閬囧埌闈炴硶杈撳叆鏃躲備緥濡傦細scantf("%c%f",&b,&c) 鑻ヨ繖鏍疯緭鍏ワ細a 123o.26 ...
绛旓細涓嶄細銆俿canf()鏄C璇█涓殑涓涓杈撳叆鍑芥暟銆傚舰寮忥細int scanf(const char * restrict format,...);format鎸囧悜鐨勫瓧绗︿覆鍖呭惈鐨勬牸寮忔寚浠や腑鐨剆璇诲叆涓涓殑瀛楃搴忓垪锛屽悗闈細鍔犱笂绌哄瓧鑺傦紝閬囧埌绌虹櫧瀛楃(\t \r \n 绌烘牸绛)瀹屾垚璇诲彇銆scanf杈撳叆瀛楃涓鐨勬椂鍊涓嶄細鎺ユ敹Space绌烘牸锛屽洖杞nter锛孴ab閿紝鍒欒涓鸿緭鍏ョ粨鏉熴
