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发表于 2012-11-13 08:48:12
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1判断语句# v8 o4 S5 E" K
if <condition> then
* E3 [0 x) D6 y$ ~- A2 ]6 Y <statement sequence1>;0 x0 s# o# c# P$ X6 X: W! U
elseif <condition> then0 x0 N' E4 _3 T' I
<statement sequence2>;$ }% b L# F8 G4 ^
else 0 }* W( W6 Q4 J; P
<statement sequence3>;0 t* `" `" [" F; `+ U; g/ w: i
end;- [! x1 j, w0 B8 |
如果分支比较多，用：( E; @. y6 D4 J. N; R- d9 }. y& @$ _
inspect <expression>
" S# d5 o% u7 j+ P8 K6 z J when <constant_list> then M1 J1 L5 {. r2 s5 [0 c
<statement sequence1>;
! N2 X& P+ W; L when <constant_list> then
3 ]% A5 f& J3 T2 q# D/ D% _ <statement sequence2>;
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<statement sequence3>;- y( B7 f/ x% w2 P# z
end;
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2循环语句% M% {- v% B& y* \8 V2 {; b: S
(1) from <statement sequence1>: ~" v+ I8 g& y# G5 z
until <condition> loop
# `3 Y( q) T% t+ b r& R4 i <statement sequence2>;$ V; e. U2 _# W& a
end;/ C( E3 v, o% u
(2) while <condition> loop
: H$ t' f+ J0 {( A S, Z o1 p( G9 O <statement sequence1>;7 \4 X# `+ c# e$ D. @/ U
end;, Z" F" D. `2 l3 L0 |
(3) repeat
! Z0 s/ A% m: E8 M6 z; P6 t" ? <statement sequence1>;7 W! X1 O R/ O) d# {
until <condition>;2 Q( N5 Y! k& `( z) d
(4) for <condition> to <condition> loop! N& O7 G) O9 m
<statement sequence1>;
# [7 H9 W% I6 K2 S/ @ next;
p8 @. c' n& n' N& x p& ~- e3中断语句
5 N8 x% ?: t0 y waituntil <condition> prio <integer expression>;2 |! a! G4 L5 M3 E
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以上为常用的函数！
2 f3 D) R5 ]" N/ e# h- ~: L还有很多，如有需要我把资料发到你邮箱里
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