|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
t; }& q* H6 N' \( |0 Q" i) y7 Y" H) O if <condition> then& E6 t3 L q9 g
<statement sequence1>;
9 K& f! M' E% O0 ?. c2 X elseif <condition> then
; Z& f2 @) Z) W. x8 F <statement sequence2>;1 Y# h N6 g" r% O0 F6 y
else
$ I3 ^& I, X9 p" p; G8 T* W- S9 x& g' ^ <statement sequence3>;: |0 s5 f1 d2 {7 @! t
end;
0 a/ z" U, ^ P& n; B7 E如果分支比较多，用：' B5 O+ ~2 t1 j" ~7 K$ f
inspect <expression>: Y9 o) A9 s5 u5 o. M: v
when <constant_list> then
: J! X. [9 \% V# | <statement sequence1>;) h9 @+ t% s3 \- G- E: K9 T4 R. b7 f
when <constant_list> then
, ^# v \& H3 \6 M <statement sequence2>;- K% J$ [* e N0 W
.... r) ?. s* I. M; i& @
else; T N, ~1 I1 R$ i0 O* W4 o
<statement sequence3>;. F/ G, Z9 [) k1 b9 Y5 ]9 b+ y" H
end;$ W! f$ h" K- D2 Y c1 r; S
: }+ f* m+ w: D; H+ Z
2循环语句6 ]2 _/ O6 }) L8 p
(1) from <statement sequence1># f1 p d, H C* g" v( R, X
until <condition> loop' v* t9 \! t1 D
<statement sequence2>;
" O8 v# ~6 r( ~, ]7 D+ C3 p end;' o/ d- E% \" ]1 ~. d4 N
(2) while <condition> loop
; B9 H2 M% D8 S1 U8 V4 J- H <statement sequence1>;/ H; [# o* Y) P
end;
, ], k5 S2 G& _$ d9 W( T/ Q# u (3) repeat 5 W, E) Z7 W& K7 Z$ K" J
<statement sequence1>;
# B: E2 l9 e( c until <condition>;
' M$ y: Q* z( n3 |! q (4) for <condition> to <condition> loop
) ~, d" K+ O y% h <statement sequence1>;8 c- t F0 g# z5 G# Y
next;
5 I8 i' {4 M# `. |3 E8 M3 X3中断语句
6 m; `2 G% b5 Z. N& b waituntil <condition> prio <integer expression>;: ^+ o$ l6 G; a% B. O: R L
/ p8 |* N! X* H v: y5 m
7 [, o+ D! H( F2 [0 @5 W; v: V以上为常用的函数！- w3 V8 H- G4 D3 E7 N# H
还有很多，如有需要我把资料发到你邮箱里 & _4 y0 K) d: P& k+ p
+ G0 X. x3 v0 S/ [ p7 z2 s _
1 V' [" S$ G. a# T7 @
' ], n& x2 b( d
, O6 ^' D' Y9 ~6 w# o9 z) o5 B# N+ Q+ u4 a3 V D' N* m
2 } q! m# r3 t. K; y+ H, X g
- u/ [! c7 J0 I( G
+ p7 S2 R N: w8 c' L6 D* J, f8 r5 `( D# ]! ?: a
5 r6 _. N$ Z( a, w t/ c% a7 a" w, }) D
|
|
[复制链接]
