|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
6 @( |! q6 D0 X$ t- A if <condition> then
. `& `# |0 y4 X% r2 W! w6 @8 h <statement sequence1>;
2 a4 w9 J4 m5 \* n elseif <condition> then
1 t! b) F- E4 a w# y: }9 a( t) d <statement sequence2>;8 v; T. @: G9 y; {/ e8 C$ E
else $ K" |: K" a0 ^+ I
<statement sequence3>;
4 F: Q; W" i% q3 l# H* H+ N end;
. F' ^! h0 E7 l) N+ j如果分支比较多，用：& {1 y; {( f+ f& E% t5 `! C' Y
inspect <expression>* X1 A# J! d+ f( l: [: i/ h
when <constant_list> then4 O' s& n9 f. K9 F
<statement sequence1>;+ ?& d( f6 n6 d! x9 o/ {( D
when <constant_list> then! S! m/ T4 m1 [; `9 G) ]
<statement sequence2>;
$ V: r+ j+ g- R+ `. i& t, t ..." t% A( U4 i' {2 p$ S" V8 y
else. O' f# X" K' p- m4 l2 x t5 A
<statement sequence3>;7 Y# C- r( t' g
end;; ]' t# Y' R# D5 m1 L2 O( {) k$ s
' Q: L$ e/ e2 h$ m2循环语句4 ~. |6 D" } N! d p
(1) from <statement sequence1>
9 O# |, l" J" O: {. B until <condition> loop4 A& q9 Q# {2 p) b( O
<statement sequence2>;: ~( p8 w$ K: t) E% k' [3 G
end;2 w% C+ B$ h" P! o8 [8 ?8 ^2 b% h
(2) while <condition> loop% L X- ]- m8 J% Z
<statement sequence1>;
- ?8 G9 }% }% i! P$ `! G5 m* ` end;
6 a$ O, C& o/ D4 H5 W (3) repeat
& }+ o5 H* x; z: T' l; Q <statement sequence1>;9 r6 Y2 }, a3 `
until <condition>;; I* ~5 X5 {4 K) r
(4) for <condition> to <condition> loop: s! }5 T% J3 ]
<statement sequence1>;1 i" q2 Z4 r' w u% d/ B4 I6 d
next;
; f J" r7 N7 H. j: R- |3中断语句
* M" `4 A# J1 V# a' b. V! J waituntil <condition> prio <integer expression>;
1 s7 s0 |+ S% ^, H
/ d2 I7 T0 s8 S* K
7 y+ G; c! e* K以上为常用的函数！' c: T* \/ [+ R
还有很多，如有需要我把资料发到你邮箱里
$ O( l5 N) K- O8 ~& M* Q) }
8 d. D0 O7 o K
+ L* c4 s3 X, t6 M
9 q4 O, f9 M& D# g9 b
5 }! U( E1 v7 M# F9 Z/ y1 l, y1 r; F& B5 v
! w/ X2 K; [# o" e# n( j' h
$ a# ?3 }/ S# m3 z0 i9 \7 Y6 K' x- _, V( e4 }" Q" b$ H/ M; Q1 q1 l x
& A/ o6 N5 H" M+ N
0 O7 j- B; e8 Y# G" U
|
|
[复制链接]
