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发表于 2012-11-13 08:48:12
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1判断语句: Z$ J6 f: u' B* e- i' S8 {
if <condition> then% p- v: ` L& q' U: M
<statement sequence1>;
1 ]7 Y' J8 |+ a elseif <condition> then
' H: e* T& W q. t5 B/ } <statement sequence2>;
+ w- Z& n8 M' t. w; W1 g else
: E1 R2 p% |" v* D <statement sequence3>;6 K$ u( v- E* h0 k8 E4 \! e! K) {
end;
6 Y0 w9 P2 w- z7 j) O* U如果分支比较多，用：
! _ j! t3 M. g4 G8 i- l7 T inspect <expression>
$ x4 M& _; s$ f. [) K2 c when <constant_list> then* Q& a/ Y6 w$ F. J& ]. n
<statement sequence1>;
( z, c2 y. ]+ _9 ` when <constant_list> then
3 ]- W$ [+ B+ T4 J) ?5 A8 O d <statement sequence2>;
" M5 M8 z6 C* d3 h7 c/ X, @ ...
# q- W6 y- m5 d else) ]+ v" v. D% [
<statement sequence3>;+ e% `5 M, _8 Q" Y6 e4 Q! h# R; D
end;
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2循环语句* c3 y. k% P/ B1 m' t; ` N
(1) from <statement sequence1>
' x5 v3 [0 A4 y! c until <condition> loop+ ?; _0 A. d: x
<statement sequence2>;! h( J& v6 @7 X9 y. P
end;! \; M# q) o9 o: T X6 T* K
(2) while <condition> loop
6 j' p J. H* B6 _3 a' f7 k <statement sequence1>;
5 n2 m7 Z4 w& {& @ end;! n5 r# q$ g- V5 V1 f
(3) repeat
' f$ ? G; G* W4 c' c+ n$ x <statement sequence1>;
2 @6 k& j" W* [* V# P until <condition>;" C+ T% Z0 t0 E Z: i
(4) for <condition> to <condition> loop7 A1 f9 z2 t- O3 {: R9 X
<statement sequence1>;
( g& x( v! X% D( P/ d7 D next;( X- v# E2 q; W. f: W3 r
3中断语句& _1 B/ D# _5 O4 V1 n" c
waituntil <condition> prio <integer expression>;9 ?. }3 }( i' T$ s; F- }# v! \
% H; A$ P! P( e
1 h% N1 Q: y* n% U2 r6 J6 F
以上为常用的函数！ P$ C! V: W+ Q, q
还有很多，如有需要我把资料发到你邮箱里
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