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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
& a8 E; u! h! r" g3 E2 g% v% I ? if <condition> then
" f" N' T5 F! E( y* s <statement sequence1>;
9 m! D' A: D+ R/ X+ ^. ` elseif <condition> then
3 k. {6 }& {5 E4 T7 t' n# r <statement sequence2>;) B: T. z7 P0 o% W/ o4 p
else
- J# [) u+ C0 \/ n2 A <statement sequence3>;
c# w8 J1 N7 `: E end;
* {3 b% {! G; S9 `0 G如果分支比较多，用：
+ }: \0 F. @/ c. V! N- [& P" L inspect <expression>
+ t# E% @; I9 ?8 ~- c when <constant_list> then
$ l+ A" [ Y0 _; J <statement sequence1>;8 R* J9 n4 _/ S3 S/ `
when <constant_list> then+ ^, t3 C9 `8 v* _. X' l
<statement sequence2>;5 ~# ? E3 {# Y
...# d- D" h0 e- k, T i4 Q7 \# d
else
4 e& m9 p; z3 f6 L' U: L+ z. ~3 u <statement sequence3>;3 h) f5 o. z u3 ^) x( C- `
end;
1 \1 \$ r( U: h. A9 \& p! i5 x1 \1 a# O. W& w' h. o) w$ G) h# c
2循环语句
3 A2 n' Q- A# f1 H8 f (1) from <statement sequence1>, A5 P' R" X# o: Z) q. K3 A
until <condition> loop7 a" y! f8 L1 m4 B, y4 T7 F" q
<statement sequence2>;
! v+ e! F' ^- \# I end;
3 n4 y3 Q& F1 B2 f2 G! D (2) while <condition> loop% y/ ?) c+ ~6 d: s* D+ L% c* F
<statement sequence1>;
5 n' }7 K( E# u- e1 n! g end;
/ V: ]6 Y0 H4 R6 e" I3 }+ D$ h w (3) repeat 5 ?- ^5 ~0 g: r' I
<statement sequence1>;
8 P! n9 j8 d' ]( U. Y until <condition>;0 F4 e% y/ u- X% o
(4) for <condition> to <condition> loop! x! \( k& F& ?% ]( \
<statement sequence1>;
; j T* R7 M; P- n next;6 g1 A) P: d/ j5 M
3中断语句
& t- `1 X' H) B/ } waituntil <condition> prio <integer expression>;& S+ I9 q( T2 E: I
3 b9 s0 S4 u9 [
. }0 j8 W) {2 A/ S* ^9 M以上为常用的函数！) [- t4 D8 `7 D8 @6 e8 K. z
还有很多，如有需要我把资料发到你邮箱里 1 i9 g6 v/ z- P1 m. [
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+ q2 R+ P8 k* h9 A/ W
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