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发表于 2012-11-13 08:48:12
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1判断语句' c4 W" A4 }% j/ a9 \
if <condition> then
; \+ [7 {; N1 d6 a# q8 y* ]8 P <statement sequence1>;9 k* ?0 {" O$ ]2 z) \4 f( ^
elseif <condition> then$ a% e2 H$ O2 R# N" T$ N
<statement sequence2>;
; `: p) [7 t5 [7 ` else
8 I/ J% |+ D$ Z4 C' z% h <statement sequence3>;: ^& {" C1 ?5 d5 V+ o; J
end;" N2 W& P4 @6 H# K; m# p* }) D+ L) \5 G
如果分支比较多，用：7 S$ P7 ]# x; `0 V8 X: m1 F; X5 D
inspect <expression>- j% U' Y7 g8 ]3 I- w7 W0 J: K$ n
when <constant_list> then+ ]* V5 _! b! _4 `
<statement sequence1>;1 l& S( P; x* ^9 J1 K
when <constant_list> then& o: y2 Y+ g/ a* k. M# c$ H3 H
<statement sequence2>;# ^/ w! t/ D- v1 Y" N2 i D
...5 c4 `* D) }# i' R
else k6 a0 j! S2 H* d
<statement sequence3>;
$ q2 r, A5 s k+ _3 d; s+ W% }end;
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, h/ c3 m% y8 T& k# K2循环语句5 C, E1 w7 H% T
(1) from <statement sequence1>
2 ^; u4 Y8 T" H0 Y2 b until <condition> loop
- A3 x Z& @- Z <statement sequence2>;
6 z& T$ h: j1 B5 a' [: u% b end;# |) l9 _4 q& B5 r% }) n
(2) while <condition> loop
) p/ U, ?/ P* T) {( V. `* { <statement sequence1>;9 i, I& |2 m3 ^+ S
end;
' g! E. x) S3 ?. d' T- W2 E$ X8 p( o (3) repeat ) P7 ?& B. G5 ~1 B
<statement sequence1>;
H0 m* ]2 H- E6 Z4 h: @ until <condition>;( q! j J3 _- c5 e# T* s- ]
(4) for <condition> to <condition> loop3 o5 Z' J% a- E! p0 n6 l' J
<statement sequence1>; b \4 B1 ^! d% H3 Z6 E! W2 W# l
next;7 a) a, ^5 I& f6 m) B! Y
3中断语句2 n5 @0 g: G/ Q0 E
waituntil <condition> prio <integer expression>;
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以上为常用的函数！/ R" C' D7 M$ n; @
还有很多，如有需要我把资料发到你邮箱里 4 w- \ }3 ~* }, N
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