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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
% |& @4 N0 m1 N5 k if <condition> then8 P3 [) a& J, Q
<statement sequence1>;+ e |# ^7 } F: C0 M' e$ G
elseif <condition> then" y# a0 ?# o# I: y6 y7 G
<statement sequence2>;
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<statement sequence3>;6 B8 O) r, k0 X8 F* j$ P0 ?! G
end;
" x7 i! S& N; L如果分支比较多，用：
* M" t ~) V5 l8 B8 w inspect <expression>
$ t) Q6 K! w8 K$ G# v+ Q when <constant_list> then
/ T8 d& K0 J3 M# {: E <statement sequence1>;
; W% R: W8 t3 B$ E8 A/ y" B! ^ when <constant_list> then2 `: I1 _. p& @8 @6 H
<statement sequence2>;! [% U; `3 e% K( E+ N- t5 i, z
...
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<statement sequence3>;. k2 O. n' M- m! `
end;; ?6 E: j6 ^! D) l, W
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2循环语句
2 Z0 f/ b6 l# ]+ E' w6 \ (1) from <statement sequence1>
3 R h0 E2 l/ N; `: a# [3 y4 q3 T until <condition> loop0 D- }4 U# J# Q. ?- Q5 n# W. x: b
<statement sequence2>;$ A& m- X' Z: M; C
end;* U5 j! k6 c% s5 a1 m
(2) while <condition> loop' ?' M. W" A) n2 h
<statement sequence1>;; i7 E1 g+ U T$ x. ^
end;
, R5 J0 d( U4 H% |; }* U (3) repeat
5 G1 @% |4 R$ H6 ^1 t* s <statement sequence1>;; R( i/ E- C3 C- ?; u+ _8 q7 X
until <condition>;
" h* ?; S7 o& i- @. x (4) for <condition> to <condition> loop
. L/ ^0 E! P1 X ~ <statement sequence1>;! t3 i2 W$ D4 K2 f4 {
next;
3 d& K9 z' n5 S4 Z- I) L* Q3中断语句
, H0 \3 K) K8 S. R2 v* O waituntil <condition> prio <integer expression>;
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# w, a, k0 q9 @+ Z6 S+ u k' g) G以上为常用的函数！% u- Z* U7 x' \' Y; X& P
还有很多，如有需要我把资料发到你邮箱里
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