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发表于 2012-11-13 08:48:12
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1判断语句
3 g2 Z3 m# g: M6 @. t( g if <condition> then
+ w u) J5 ~+ n: D& I <statement sequence1>;, `8 a \; f7 L! a8 O
elseif <condition> then
0 o8 P+ J: J7 D <statement sequence2>;
r$ G- ^( _ i else 3 F6 \' ]" t3 ?& Z! T( B
<statement sequence3>;
; P* p9 q# o3 B2 x0 B# J1 D; z& @: ^ end;
9 `1 J8 c2 W4 }: @1 _* E+ ^如果分支比较多，用：- T' f. f3 i7 ?/ c
inspect <expression>+ {$ y: r- C& z, J
when <constant_list> then+ n w# V- w* b
<statement sequence1>;
) L2 t: b. u, X- f: h! P when <constant_list> then
# j" C# s( G" B' Y( B( ]8 A! n <statement sequence2>;/ J" N5 V, N+ Z8 [% V5 {3 v$ p
.... c0 s( o1 f) j, p9 _# \
else
9 @* S7 R$ a( z! t6 j <statement sequence3>;8 `5 B+ l2 n/ ]# i; P8 x+ X
end;$ Q C {2 M) k
5 U- N0 I4 Y0 Y4 F+ m: x1 d2循环语句! s8 H8 ]" {2 k+ @ N' T, w
(1) from <statement sequence1>0 A2 Y2 {4 j, b! h9 D
until <condition> loop6 \) l8 k$ d+ c0 Q" P# V
<statement sequence2>;: ?4 q# f+ z9 a" V
end;$ T; F" S: k) B& j5 A$ q8 h" D
(2) while <condition> loop
9 `: z0 x* R8 a& K- ^ <statement sequence1>;
+ K B$ C! t- b- d7 C end; e8 n# g [2 U/ T8 n$ n' W
(3) repeat
6 ]5 l$ o ^! b5 A <statement sequence1>;
6 g8 U+ c; ]! ]# R) E* N0 r1 f until <condition>;. }( z8 z7 ]- O
(4) for <condition> to <condition> loop3 S# v0 V6 H! u, B* F( P. P
<statement sequence1>;: g1 g w1 r u
next;
! H4 h5 ]8 i4 [# B3中断语句
9 ^( W, t' V6 t& |/ k _ P/ S waituntil <condition> prio <integer expression>;% a0 s" b- C+ d0 `7 k; d% q
* x4 }3 u* b: @ w; ]: w7 ^
2 R3 C S' P! j) c' D. l3 V以上为常用的函数！
, ~+ o4 p2 c F% D还有很多，如有需要我把资料发到你邮箱里 ( L9 c8 A' X6 O. f% C9 f H
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