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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
$ a) p1 x6 V( \6 O if <condition> then0 |# }: o* x$ z b. \* I6 V, z$ h$ I
<statement sequence1>;
7 l6 }3 A8 d) @% \7 a8 X) T. K3 a elseif <condition> then
$ O: M& ~# u- U/ n/ F: _, v0 j/ E/ d <statement sequence2>;4 @$ K* H# l% s1 K: H- L& h9 e" T
else
6 i) r: D% G O6 q <statement sequence3>;; y$ ^7 e9 t+ W* ~+ A9 m
end;' \3 H7 F) V! b
如果分支比较多，用：
; {- P; y( J3 q- z+ ~ a* A- F inspect <expression>9 d. w1 ?2 m. `8 [+ @" S1 ~" y- h
when <constant_list> then
1 y& W# @9 n. E! b <statement sequence1>;2 i- T- o0 V; A/ c
when <constant_list> then
1 A3 D, S! B) A0 q <statement sequence2>; I: T. k0 I6 B! o, r
...4 ^5 j; ~' R5 G3 v# p) j1 @
else
3 G9 t! A7 N4 R% J5 {! }4 m+ L <statement sequence3>;
+ `3 q( Z7 O9 o! t. Aend; d" x) k3 q- M L/ M1 v" y
. {& E* A9 e5 p9 }, I
2循环语句
9 m3 Z5 Z: `7 u9 B3 R6 P (1) from <statement sequence1>( I7 Y' z8 P8 g) x9 b& T/ L
until <condition> loop6 E `7 f2 j+ p8 G6 I% |
<statement sequence2>;: ~* O$ J/ y, O
end;, @+ H3 |; {; A4 @7 b* {7 t2 p
(2) while <condition> loop
! h# D% \, |- v6 b+ y( J5 _9 \% B <statement sequence1>;
' o; g- `+ d: ^ end;
$ v, Z$ n' H" V- ? (3) repeat
+ U* H6 ?% E( s" L <statement sequence1>;
0 [) E; L9 M; e* P7 D4 P: A until <condition>;
' f$ A" t% B U6 M& S9 e (4) for <condition> to <condition> loop7 o% \! X. ]3 g$ e
<statement sequence1>;
" n. F9 J k2 a1 Q. M next; U! L& [ {: F0 w
3中断语句
! r( u+ ^( j1 [* d* T waituntil <condition> prio <integer expression>;- S' h1 u' A$ q t
8 G0 r- Z0 q! U- r* b, f$ v% n% n- [% X ], b
以上为常用的函数！# @& f5 h3 I- C6 x) s/ J5 w
还有很多，如有需要我把资料发到你邮箱里
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