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发表于 2012-11-13 08:48:12
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1判断语句
. U; S; }1 f# z7 v5 Z if <condition> then
! ^6 u. T0 e- [ <statement sequence1>;
1 y9 s1 w. d9 u W$ Y1 } elseif <condition> then9 o' p7 y3 L4 _( X: Q- v
<statement sequence2>;
, o- P K3 m3 j; Z9 H* V, U else
+ `0 P4 H1 Y; y2 A$ m$ h, M <statement sequence3>;8 R. p; `; x7 O8 y' n& w
end;# e0 M/ ^8 j; U
如果分支比较多，用：; R$ p# B! l0 ^
inspect <expression>
# H, U9 A& P. ?8 r( Y when <constant_list> then, i3 R4 S2 J7 J1 q& v( x' G0 ]6 K
<statement sequence1>;2 B' s/ K3 {% f' e0 x
when <constant_list> then( H5 m8 n( o) I4 K" Z
<statement sequence2>;" L" |5 v- u- M+ p3 Y" A
...
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<statement sequence3>;
, R' m* P' S- @9 m5 W) F7 W% yend;. K$ F A5 W6 w4 [, [
6 P" }) Q: p. z* \8 ]3 D: b2循环语句7 V5 S) L) ]+ ^3 O% E2 }0 K8 B! x
(1) from <statement sequence1>$ V6 \1 ^2 q$ _% w
until <condition> loop5 g* _% B# c5 I# E
<statement sequence2>;
; c8 C! q# {3 O' [! a end;
* [7 z9 d% H1 I9 l7 i( p4 Z (2) while <condition> loop
& A" o% h1 I4 @: _3 k0 i! N <statement sequence1>; c* L F8 A6 [8 a3 w) K
end;
7 m K- n. }# @* q/ k, Y, o6 J (3) repeat / h8 W+ P- o$ @! I# n, o! d
<statement sequence1>;5 F9 b5 u' @; h! i
until <condition>;0 E6 e8 y' ~2 Z
(4) for <condition> to <condition> loop2 \/ x& U: z* ~& g0 m% t% U
<statement sequence1>;
w% r8 m, J: H; a next;! M! Y9 N! w8 P6 o
3中断语句5 @, C0 i4 S: U8 J) T" q! M
waituntil <condition> prio <integer expression>;
$ p. O7 @, u9 |) h1 G# z' H! ~8 _
4 x, D2 _7 n) Q" \" B1 M以上为常用的函数！
/ A3 x: P _" [: d: b4 A还有很多，如有需要我把资料发到你邮箱里 - w3 k9 J' R0 {8 F
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