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发表于 2012-11-13 08:48:12
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1判断语句
2 W9 ]/ L; d' o$ @8 ]3 e if <condition> then
1 {2 r) d/ B2 L2 i( I& X @ <statement sequence1>;; U: v0 X& |+ c, M; j+ \1 R4 h
elseif <condition> then( I, Y# s' G7 M7 U# @/ w
<statement sequence2>;, J* I& G+ _% [* r8 N# V1 k
else ( |% y* R2 J2 [
<statement sequence3>;
7 x+ M0 U1 H" d8 U end;) u( s+ l4 B2 w! N' }; I
如果分支比较多，用：
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when <constant_list> then+ e& M |; i$ Y" o+ m- C+ w4 f, B4 q
<statement sequence1>;
0 i0 n& \5 x( c0 c8 s4 Y w when <constant_list> then
, H* Z2 U" B* H! ?* k! u/ w3 I; x4 Q; w <statement sequence2>;7 ]- i" A5 }! q, [) ?: h- e+ m7 Y
...
. l d2 M0 B- D- t else
5 @1 H" t) k+ O" j! G <statement sequence3>;5 X4 z0 @2 r9 C! f- v
end;
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2循环语句
' `" ?& V" l9 d! m" A, C (1) from <statement sequence1>
5 r! [7 ]' J: K/ K) D- q: {' c5 d until <condition> loop
. S+ y0 v/ A$ U+ u <statement sequence2>;/ z, u2 o( D# j5 |! N$ `- M
end;
; m) n+ e) C; j: U' t" |' f( s6 c (2) while <condition> loop
0 F3 F. ?, [7 b" r <statement sequence1>;
! x n. d7 D, T, J( u end;/ ]1 @" }% ~# s1 @' I" [
(3) repeat - N& h" U. E" h: C# {
<statement sequence1>;
$ o W( _2 `5 w4 F2 L6 [ until <condition>;
0 w* d0 V4 U0 Z, X! S (4) for <condition> to <condition> loop, u i7 [9 w: w8 N& P0 P
<statement sequence1>;
* l. T; J, E& C next;2 L8 l! Y9 ^. B: p' I
3中断语句& u2 q4 u: h( w) z1 \2 U
waituntil <condition> prio <integer expression>;# X. K" W- ?' I0 E/ H
) [/ z4 o5 q8 j
3 S: P! ~; m. E& l+ u以上为常用的函数！ @- }- ?' u' w
还有很多，如有需要我把资料发到你邮箱里
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