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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
" l, Y2 S+ _5 S if <condition> then' |. W4 m6 }+ k4 R4 W
<statement sequence1>;; ~2 k. ^6 H# e) I, I
elseif <condition> then
6 x, }! i7 Y) Z8 |" |) I6 n <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
% }2 d% q, z3 p inspect <expression>* W" O) H" r% Q k5 n" L& f
when <constant_list> then
2 q0 J$ [. H, T6 U+ v6 K! `& ] <statement sequence1>;* o# \2 c# l* @/ e, ~: T2 N
when <constant_list> then$ o9 d7 c) }7 W& L
<statement sequence2>;
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else5 m" I+ Z1 M0 ]! L. S; {
<statement sequence3>;! t. n4 ~ l. d9 v1 c) z
end;$ y' W' e5 N g& ^' a1 i
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2循环语句& n+ l `. M, \1 V! L4 U3 C3 P! }
(1) from <statement sequence1>
* x' w9 {- S: v. H until <condition> loop% v$ d, u; D# x
<statement sequence2>;
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(2) while <condition> loop
8 W. V% }2 o" C4 U, y/ H <statement sequence1>; W: a0 G, @" [" M
end;
9 c: |% ?. q. n1 @, k (3) repeat
- x" A) g: j" G$ p9 e; v- j* H! ~ <statement sequence1>;& m5 o3 o( U0 R5 q' [" |( \/ u
until <condition>;8 J9 d |$ l. L7 s8 I9 T* Q5 A
(4) for <condition> to <condition> loop) \" d! z0 r3 W8 W
<statement sequence1>;: ~* \4 v& W4 t3 {
next;* \" x L8 V- N% S
3中断语句
& X1 {6 q9 \; P5 q, W& t X waituntil <condition> prio <integer expression>;
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以上为常用的函数！
4 Y t' p& @# r- n+ {- O还有很多，如有需要我把资料发到你邮箱里 # Q- [; O* ]0 ?% S; b4 G4 X! z
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