ST缁撴瀯缂栫▼-鏉′欢.zip_ST缂栫▼-寰幆璇彞IF/CASE璇彞鐢ㄦ硶 - 閰峰痉缃 - CoDeSys杞欢鏁欑▼涓嬭浇,CoDeSys宸ユ帶璧勮闂ㄦ埛

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ST缁撴瀯缂栫▼-鏉′欢.zip

 

ST缂栫▼-寰幆璇彞IF/CASE璇彞鐢ㄦ硶:
ST缂栫▼-寰幆璇彞IF/CASE璇彞鐢
1. IF璇彞
鈶犲叧閿瓧IF
鈶″垽鏂墽琛屾潯浠讹紝鏍规嵁鎵ц鏉′欢锛屾墽琛岀浉搴旂殑鎸囦护

鈶㈣娉曡〃杈
IF   鐪熷亣閫昏緫琛ㄨ揪寮1 THEN  
璇彞1;
ELSE
璇彞3;
END_IF
鎻愮ず
鈶犵孩鑹查儴鍒嗗彲浠ョ渷鎺夛紱
瀵逛簬澶氫釜鏉′欢鏃讹紝涔熷彲浠ュ啓鎴愶細
IF   鐪熷亣閫昏緫琛ㄨ揪寮1 THEN  
璇彞1;
ELSIF 鐪熷亣閫昏緫琛ㄨ揪寮2 THEN
璇彞2;
鈥︹
ELSIF 鐪熷亣閫昏緫琛ㄨ揪寮n THEN
璇彞n;
ELSE
璇彞3;
END_IF
鈶F璇彞鎵ц閫昏緫鍥撅細

IF搴旂敤瀹炰緥


2. CASE璇彞
鈶犲叧閿瓧CASE
鈶″垽鏂拰鏉′欢鍙橀噺鍖归厤鎯呭喌澶勭悊瀵瑰簲鐨勫懡浠
鈶㈣娉曡〃杈
CASE 鐪熷亣閫昏緫琛ㄨ揪寮廜F
Val1:璇彞1;
Val2:璇彞2;
Val3,Val4:璇彞3;
Val6,Val7..Val10:璇彞4;
Valn:璇彞n;
...
ELSE 璇彞5;
END_CASE;
鈶ASE璇彞鎵ц閫昏緫锛

鎻愮ず锛
鈶犳潯浠跺彉閲忓彧鑳芥槸鏁存暟Val鍙兘鏄暣鏁
鈶$浉鍚岃〃杈惧紡锛屽涓笉鍚屽彉閲Val涔嬮棿鐢ㄥ垎鍙烽殧寮
鈶㈢浉鍚岃〃杈惧紡锛屽涓笉鍚岃繛缁彉閲Val涔嬮棿鐢..闅斿紑file:///C:\Users\ADMINI~1\AppData\Local\Temp\ksohtml\wps69D4.tmp.png
CASE搴旂敤

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