|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句" @/ G- w: ^! L0 u! a7 H: @/ Y
if <condition> then
1 b: H. p# |9 }# E9 G Y) V <statement sequence1>;
4 `4 d7 |2 J" p1 ? elseif <condition> then* s# _1 u* r9 l0 K
<statement sequence2>;$ `1 |5 [! n6 |! \ V3 O
else
$ i7 D3 C* E' z0 T" a1 D( n* Y$ \6 b <statement sequence3>;
3 J% H2 S, }: e end;( M) ^; |9 P5 u7 }! r5 r1 `
如果分支比较多，用：3 h- ?# F1 d1 F) s: C4 I. Q5 e% z
inspect <expression>
4 N8 S& }! g# `( [6 U! F+ C K* Z when <constant_list> then
1 D1 H# L& y4 k0 Q, N8 | <statement sequence1>;( P$ g! F* f2 D
when <constant_list> then
1 B) x4 K/ E. u% l- X# } <statement sequence2>;
1 `. Q9 Y7 O2 s ...
0 y+ d' c5 J4 O T9 q' C; |# I else
K# L1 o# j: ?8 F1 f0 f1 h <statement sequence3>;& |' L6 @' G5 V5 v
end;; w" }9 V: Q: k9 p& P
% B% B1 s" }6 M: x4 k1 U- K2循环语句- n. v; S9 ^% m& c+ o- S" {
(1) from <statement sequence1>! `* v. |- Q- c7 \) Z
until <condition> loop
+ f. y2 A0 w0 M, { <statement sequence2>;
& e$ t l- F2 f: b' { end;
- s y* o2 ]. \+ X/ C (2) while <condition> loop
1 p; |) a9 o. W6 E& n) s' @ <statement sequence1>;% S8 X, h6 X! o
end;- h# K' G1 v, w; Y$ i
(3) repeat
" T* |( K) T$ ~( a0 [3 f <statement sequence1>;" g$ w8 u0 X) g! d, Q/ E( c
until <condition>;
$ c% H3 A t' v0 W. ?% B b0 X5 g (4) for <condition> to <condition> loop Z8 N/ ]$ [6 j; T
<statement sequence1>;
8 E) E( n- x- m0 b5 l) l next;3 W9 ?6 H! v1 d+ X
3中断语句6 Y) ? v9 c G8 v d2 k6 D' Y: M7 {
waituntil <condition> prio <integer expression>; m' z% n& b: s; }# q. G2 k: B9 V! n2 g
# P" a# h( b$ u: A' e) Y* B% M! I& a4 D$ d( m
以上为常用的函数！2 W% ~2 ^7 q5 u8 e" g3 Y
还有很多，如有需要我把资料发到你邮箱里
/ e& }3 R, `8 F2 p4 T
- ?9 L8 I3 I2 k! b1 ~3 x
, A" B" K/ s4 C. R' L' t2 f
0 l! N4 P1 s5 g5 H+ i! e# ^ ( n5 [! P4 `2 }$ O! b
5 M- Z: m' a" g5 F4 y9 U# y
& P! Y0 `/ y. ]2 t4 y5 N
& q9 s( r! F: G( A7 }
, K: a8 R# S9 o. y+ }- D4 r* _ h% G
8 _/ W5 j- `# v) Y
|
|
[复制链接]
