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发表于 2012-11-13 08:48:12
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1判断语句) S( S# O1 g2 F# C# p$ @
if <condition> then
& T5 k; ~# h, H: U# w' y <statement sequence1>;6 q6 N2 B$ h& R4 Z' |/ h
elseif <condition> then
, V8 y$ V7 A. ~- F) X5 I$ h <statement sequence2>;
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<statement sequence3>;/ `! z/ d) n& C: N. {
end;
* w4 c7 l! C) q3 \8 ^1 o如果分支比较多，用：
' y" y& y' ]( L% V! `- ? inspect <expression>! B. U+ ?* B) Y+ a. s
when <constant_list> then2 d4 B! v4 ?0 u$ L, n+ [
<statement sequence1>;
) p+ x- n8 Y% z1 e2 S% m4 R when <constant_list> then; ?3 F. |& l* i1 v3 {
<statement sequence2>;
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else
) k4 X9 a" h. X. a+ D3 v, B <statement sequence3>;
W& g( A4 J! jend;1 Y" M3 n) M9 L8 o
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2循环语句
7 e/ s- ?0 q8 K7 A9 \# F' a (1) from <statement sequence1>$ m- Q7 f/ f( P& R
until <condition> loop
9 d0 s5 M! K' g <statement sequence2>;
4 a; z G0 B: }: e# s( M end;! ~4 P( I8 t* \- Z7 n& `
(2) while <condition> loop* P$ e3 J# B f$ p/ A1 t7 _
<statement sequence1>;
- Y+ Q4 ?1 r" j0 s% c8 z9 L end;
* ~0 g% E. ?% j- F! u2 s (3) repeat $ {9 K0 D/ g" @2 \ P- O3 ^
<statement sequence1>;$ _- R7 k/ V' ?8 j M+ J3 e
until <condition>;: h$ a6 z l. x
(4) for <condition> to <condition> loop
$ {9 k& Y* q" | <statement sequence1>;9 \6 w1 P$ R* @, Y3 v5 I/ W; m
next;. X* B* y8 J9 e2 B, {/ W
3中断语句
' U# l; G# q5 R- W" N7 a( C9 G waituntil <condition> prio <integer expression>;
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Q7 x& }0 R& ?3 s8 I' t
以上为常用的函数！
7 q! l" ~' o2 u" x7 i! b还有很多，如有需要我把资料发到你邮箱里
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