瀹為獙
1-3 S
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涓�銆佸疄楠屽悕绉帮細
S
璇█璇嶆硶鍒嗘瀽鍣ㄨ璁?/p>
浜屻�?/p>
瀹為獙鐩殑锛?/p>
閫氳繃鎵嬪伐缂栧啓绠�鍖?/p>
C
璇█璇嶆硶鍒嗘瀽鍣紝
鐔熸倝骞舵繁鍏ョ悊瑙ｇ紪璇戠▼搴忚瘝娉曞垎鏋愬櫒
鐨勫伐浣滃師鐞嗐�?/p>
涓夈�佸疄楠屽唴瀹癸細
1
锛庢牴鎹繚鐣欏瓧鍜岀壒娈婄鍙疯〃鑳藉尯鍒嗗嚭婧愭枃浠朵腑鐨勪繚鐣欏瓧銆佹櫘閫氭爣璇嗙鍜岀壒娈婄鍙凤紝骞惰兘杩?/p>
琛岀畝鍗曠殑閿欒澶勭悊銆?/p>
2
锛庤璁¤瘝娉曞垎鏋愬櫒妯″潡璋冪敤缁撴瀯鍥惧拰鍚勬ā鍧楁祦绋嬪浘銆?/p>
3
锛庣▼搴忔簮浠ｇ爜銆?/p>
4
锛庣▼搴忕殑鎵ц缁撴灉锛氳緭鍏ユ枃浠讹紝杈撳嚭缁撴灉鏂囦欢鍙婂睆骞曚俊鎭�?/p>
鍥涖�佸疄楠屼腑鍑虹幇鐨勯棶棰樺強瑙ｅ喅鏂规硶銆?/p>
閬囧埌闂鍙婅В鍐筹細
1
銆佸叧浜庢敞閲?/p>
//
鍜岄櫎鍙?/p>
/
銆傞渶瑕佸尯鍒嗭紝鍦?/p>
isanotation
鍑芥暟涓�?/p>
2
銆佸叧浜庨亣鍒扮┖鏍兼椂鍥為��锛屼竴寮�濮嬫病鏈夋噦锛屽悗鏉ョ粡杩囧悓瀛﹁瑙ｏ紝鏄庣櫧浜嗗浣曞洖閫�鐨勩�?/p>
3
銆佸叧浜庤瘝娉曞垎鏋愬櫒鐨勬�濇兂杩囩▼锛岀粡杩囪�佸笀鍐嶄笁璁茶В锛屽凡缁忓ぇ鑷存槑鐧斤紝鍏蜂綋姝ラ锛屽湪鏈�鍚庝綋
浼氶儴鍒嗕腑銆?/p>
浜斻�佺▼搴忕粨鏋勫拰浠ｇ爜
婧愮▼搴?/p>
璇嶆硶鍒嗘瀽绋嬪簭
璁板彿鏂囦欢
绋嬪簭缁撴瀯锛?/p>
Scanner
close
Isalpha
Isnumber
Isanotation
Output
Isother
Error
涓诲嚱鏁?/p>
Initscanner
Lexscan
浠ｇ爜锛?/p>
#include<stdio.h>
#include<stdlib.h>
#include<string>
#include<iostream>
using namespace std;
//
鍏抽敭瀛楄〃
string
keywords[20]={"include","void","main","
int","char","float","double","if","else
","then","break","continue","for","do",
"while","printf","scanf","begin","end",
"return"};
char aa[99999]=" ";
//
鍏抽敭瀛楄〃鍒濆涓虹┖
string id[10000];
int pp=0;