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发表于 2012-11-13 08:48:12
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1判断语句
6 W- L+ W9 c$ C Q, @# g. ]/ z; G if <condition> then
- n" p% s2 [- l) k# Y* i& d8 ]" O <statement sequence1>; r% ]/ I) p* p5 Q$ u* Q
elseif <condition> then, k6 w- \) x( n
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
/ _+ L s: ^) v5 | inspect <expression>% i& I) _' M3 U6 X( ?9 h
when <constant_list> then* s4 `; k& C4 m' |
<statement sequence1>;
* B6 t! u. Z5 D+ _, v4 ]" i when <constant_list> then \7 Y" D3 l1 F W( l: B9 W
<statement sequence2>;0 c; m7 F/ P7 i D3 t
...
+ m9 s6 @: d1 d% R+ e( m4 }2 W else
! F2 g4 c- Y' X g2 _% D0 { <statement sequence3>;4 n, ]4 y/ H6 e z7 T; Z
end;
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$ \& C" [% ~0 b6 B% w2循环语句% v# V" n9 R) W+ C2 K8 h
(1) from <statement sequence1>! [3 n) n$ D: ~. j0 m
until <condition> loop1 U. a1 i3 R( T# w) z: r6 V3 l
<statement sequence2>;
1 d! B' z/ l! B" K9 ]4 M end;
+ F- k+ L( j9 [3 p+ [ g; a (2) while <condition> loop
9 T: R3 C& H0 |& ]8 T* q: i9 @* u% ` <statement sequence1>;- I% s" I7 Y% L/ x" K
end;
/ L& B I$ x" ^- k& [0 p (3) repeat ' k2 c/ {9 o8 O3 ~% X
<statement sequence1>;, u A: {& S5 \( j4 V% [- d1 e8 Z$ W
until <condition>;; h* t }- [- c' B! |
(4) for <condition> to <condition> loop
% |5 T! K C: ~3 _$ \4 A8 e <statement sequence1>;
3 \: v- N y8 \# C0 H, ? next;) D6 h. \" K+ U% G2 [, S0 N- d G
3中断语句
4 p. v7 Y7 @8 d& \0 |/ L, g waituntil <condition> prio <integer expression>;+ I; `& l1 d" i
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: y5 w& y h5 p& R9 ~以上为常用的函数！
6 b8 z6 I: Y, w还有很多，如有需要我把资料发到你邮箱里
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