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发表于 2012-11-13 08:48:12
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1判断语句; T( q. K$ C* H& L1 p
if <condition> then
! o. m. p0 w' N/ v$ E8 { <statement sequence1>;6 V9 F: @5 v8 d, F% j: j
elseif <condition> then
* m0 V/ f' I# `2 M) a2 @6 o <statement sequence2>;0 A4 i ?, K5 A5 c' Z7 u' P9 K
else
) I3 V! x9 ?. j# v$ R <statement sequence3>;
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如果分支比较多，用：7 r" `2 d+ ?7 Q5 h6 L
inspect <expression>; D0 c& r& X! j* M. _' i8 S
when <constant_list> then
' u5 l+ @# D& A# z+ q <statement sequence1>;
* O" H. r& m: v% t% b$ N7 b7 ^ when <constant_list> then3 u1 A& A @& b5 j- L# P
<statement sequence2>;* ?$ @# l7 _! z" b0 V
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else2 Y! r+ |: ?+ o: R3 `- K
<statement sequence3>;: z. d7 f. s2 V- i6 _+ Q
end;0 I: O3 \7 b: }
! p1 S2 [) g c, m- S, c2循环语句
, p9 ]% n% Q0 H9 q (1) from <statement sequence1>
- w) I/ E+ A8 D$ d& q: Z# h3 D until <condition> loop
% `5 U6 [! @- y5 w <statement sequence2>;3 s9 X2 _9 {; d' ?* U) Q& s
end;
' A6 o/ q$ G* O# q (2) while <condition> loop
, ?: |/ K9 ?: l6 H+ `& X <statement sequence1>;
8 s% c# v [, ]1 k) |& B+ O) S end;
" [: K- s7 I( l' q) ]2 j (3) repeat
3 [: |- `/ B: i <statement sequence1>;* a; U7 m; A# V1 }7 X$ n) s
until <condition>;
6 ?, P( h, d. b& Q. U# w- @4 M (4) for <condition> to <condition> loop
: O1 x m% D' r, ~: ` <statement sequence1>;
5 H6 k3 r% {6 k, J# J( h/ i5 y4 v" { next;
& c& U( o5 a% ^ c* q( _( S3中断语句" `, K$ ~+ o% ~( E0 Y
waituntil <condition> prio <integer expression>;
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以上为常用的函数！3 d+ H6 S4 X# J4 K
还有很多，如有需要我把资料发到你邮箱里
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