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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;7 ~* e( q; K. s* E6 }) B4 p6 {
elseif <condition> then
+ ?3 j# q0 e) a0 r, j <statement sequence2>;9 W4 E2 V9 a6 l1 ^# y2 d6 Z
else 4 M' ^" E5 x7 [" W }9 @
<statement sequence3>;
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如果分支比较多，用：
. ]- ` g' E+ W% F: j4 Q inspect <expression>
6 m; L/ ?) C' ] when <constant_list> then
; H1 [4 s7 o# N- Q# E <statement sequence1>;3 \5 G; r( q* E7 B& ~
when <constant_list> then! w- w* l) C$ R, k7 A. e. ~; m
<statement sequence2>;' o) j1 y: u. o3 W; f1 A5 ^$ ^. n
...
' P- @" j- F' d& L8 ~2 L else
/ d. [8 e- d V, l* K <statement sequence3>;" X( i1 ]" V, x4 J( N8 B+ v
end;
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* f, d+ J( ^8 Y' y3 e h2循环语句
W6 x) K7 ~ n4 U2 A+ { (1) from <statement sequence1>) o. M1 |' Q' f0 {' I* x! Z
until <condition> loop8 C5 [0 m4 G5 e; e
<statement sequence2>;
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(2) while <condition> loop+ p) r9 I, O6 a" L9 L/ p. I p& F3 M
<statement sequence1>;
3 A; D d) k$ m& C- k: l end;
. t5 O {' y$ U8 T7 }) t9 @ (3) repeat - l; O/ C4 o/ N4 B; R1 b4 _: ?
<statement sequence1>;
4 w& x" d2 N4 M, W7 Z' F until <condition>;
! I+ h$ w+ W) X6 H (4) for <condition> to <condition> loop5 Y$ x0 {) h4 _" K' K7 ?
<statement sequence1>;$ f, t0 F) i0 a1 H3 z- o
next;* H9 x4 m1 L2 g2 T- D
3中断语句# q8 y% t$ b. I5 J2 p$ _8 A0 B
waituntil <condition> prio <integer expression>;9 V# W- a- @$ o6 J5 p& i
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0 h& g' J7 A2 o6 g以上为常用的函数！
; o1 C6 d1 Q% V5 u: k还有很多，如有需要我把资料发到你邮箱里
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