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发表于 2012-11-13 08:48:12
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1判断语句
( I6 P8 l: _ |+ F) @8 l if <condition> then7 o" h; }1 q7 Q
<statement sequence1>;
8 }. c* Z- W$ A2 |2 r elseif <condition> then
8 r, x, E1 \: }6 H' X5 b <statement sequence2>;
8 r0 l! c- O: d5 u else
2 l! O m6 G4 c3 L+ ^1 V/ p, ~/ n. g, p <statement sequence3>;; k8 s8 _. }% p+ w
end; l% y2 E' R7 n; f+ W# q8 D
如果分支比较多，用：6 y9 n0 |# p8 a
inspect <expression>
6 w$ G& k/ b8 b! }% d! p4 s2 S when <constant_list> then9 R0 t' e% a# K& g V
<statement sequence1>;, o' E; p' U/ ]% Y7 X1 O
when <constant_list> then
8 a9 C) I/ D. u <statement sequence2>; R' ~+ U3 x! t- B: C
...
. J$ m3 {2 z! j0 z" [) w else
: U! p. J! m- r" m! }: {) y <statement sequence3>;
( E2 e9 x. J' y3 G4 z g6 _# V% Q! Lend;9 W# T. S2 [9 |7 b) c4 |, k- U1 S
, r7 \: s' F% {( F# ]2循环语句
* Z) D0 x6 j3 X( T( h% A (1) from <statement sequence1>6 B2 Q5 [) r$ |6 m, H. G5 I
until <condition> loop
/ A: H9 N5 R6 H* A2 A: }8 a% j <statement sequence2>;( x# I5 L/ `1 y$ U- _8 `3 G
end;
; R. `' E0 t% c4 n (2) while <condition> loop
3 b! r5 M" [$ e% X v <statement sequence1>;
4 x9 V7 x% L- s4 W) E# j end;- }, {" M8 ?$ g q. l
(3) repeat & y; T+ X1 t* D: Q V
<statement sequence1>;0 V5 {! V* B' X2 ~- }* k$ A, ]
until <condition>;
/ L* I+ C9 J2 ]5 t (4) for <condition> to <condition> loop( s7 Z9 x& s$ ]1 D
<statement sequence1>;* }! s2 _5 r& h/ H9 ]
next;0 q t* B! \ a& j
3中断语句
+ O4 e9 b& _/ s; r% \ waituntil <condition> prio <integer expression>;# G ^& r3 K* H
i4 n# G+ P V+ j! E
& n7 t! s1 ]2 ?7 X4 {
以上为常用的函数！
* o- I: {* [& m7 v q: j/ e还有很多，如有需要我把资料发到你邮箱里 ! Y6 e& d6 [" P9 |5 e. a) D9 k
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