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发表于 2012-11-13 08:48:12
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1判断语句
; t1 w: C/ y4 |) {+ T& J2 \ if <condition> then/ ~3 R+ q' z% b% s. o2 A
<statement sequence1>;
' c' ?' z* H7 C) \# [. b% j0 ?6 M elseif <condition> then% a- }6 j9 \: o$ M! |+ X( D
<statement sequence2>;5 H( M/ A1 }4 N& d
else 0 u s. I6 A5 [, o, ?" s: i
<statement sequence3>;. `2 @8 A% u1 ^
end;
: V2 e! G1 F) b! K" C; Z4 d如果分支比较多，用：6 H$ r R8 a, i( z- C
inspect <expression>/ q0 j3 T7 i- a/ [ o5 V
when <constant_list> then
) K3 B- Q$ T) F <statement sequence1>;3 k. Q; x. S' p1 C5 [5 w
when <constant_list> then8 {( r5 A2 @) e$ H
<statement sequence2>;* f6 D, C' i( z4 B
...1 [9 y! O9 z9 p/ S
else
# V$ y7 }( |- t <statement sequence3>;" H9 m5 o* H. }* o- P
end;& k: L% K g$ `9 J" z
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2循环语句5 y' A% j* R* I' q& \4 N
(1) from <statement sequence1>
6 c2 R. N6 E5 @! Z c+ h until <condition> loop
& v' n- E2 Z8 I, n2 P <statement sequence2>;* j9 U' w7 q6 H- l& u! \' Y' K
end;
7 |* P" z ?# _& i, y* K m (2) while <condition> loop
* S4 P# [0 X% I/ D1 b. F <statement sequence1>;
& j) I: A- U8 b, E1 G/ i end;/ R( \2 h+ a ]1 j# O8 {- b
(3) repeat ( x( w" {5 D+ K
<statement sequence1>;, w# Q6 V5 E" ?$ L
until <condition>;* u- K3 s v+ m
(4) for <condition> to <condition> loop
5 e) E: d1 c2 X4 O. M* G5 F <statement sequence1>;
6 Q% W% u$ c' b8 | next;
' a* H U' M" I, s" w9 F$ g3中断语句
k! @* P/ c. p' H& R% J ~! z waituntil <condition> prio <integer expression>;
+ U$ t& t6 E1 [5 ?$ U% u4 C2 V; }8 p# n3 [, J* o
1 s( F% I: I! X8 G以上为常用的函数！" }7 \$ V0 f0 {: s' s
还有很多，如有需要我把资料发到你邮箱里 2 Y; U' c2 `8 J+ T& c3 J R! T
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