|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句& ?" T0 q9 g5 n# d& h+ z
if <condition> then
/ V) z0 w& }6 p/ M& k3 q. g <statement sequence1>;
7 ?1 c" @8 A, L+ G/ T6 ~# k elseif <condition> then5 a/ [& O9 v( k
<statement sequence2>;
7 D6 [2 d$ O- W0 v else $ N) h2 D- y( A$ i* N" W$ J
<statement sequence3>;
" k+ T& m5 l' {# q end;" x6 b* d+ W$ O4 N! d4 s+ z
如果分支比较多，用：% i& W d- p! r! Z) ?" I
inspect <expression>
, P+ g' Z& }6 L5 D5 l2 _ when <constant_list> then
k* B3 f/ ]' G: J <statement sequence1>;5 \5 X6 b7 y: z& ?/ }2 K& C5 x2 `* a0 s
when <constant_list> then4 Q5 S- o% ] y. F, y
<statement sequence2>;
% J# \ F( t9 ?% T' s; H4 n ...' I, S3 ]3 n/ i$ m# L. ~* o
else* G5 J) ^3 `& t) N$ E
<statement sequence3>;
7 F* Q7 M+ o' ^- N5 s( ~7 Y4 v* hend;: x t8 |! e& f6 n% X0 D/ ]
" H9 F0 B @ T2 ?
2循环语句) z3 X) G' ?5 ~9 j
(1) from <statement sequence1>
/ P. \) G# i6 |2 ]8 ]5 V until <condition> loop
* }7 [( Q$ r# u4 r# ~% V2 ] <statement sequence2>;# z' ?$ p! r5 A1 v
end;3 Y. v1 G9 i, a
(2) while <condition> loop! n7 J) P4 m7 X5 U! R6 O2 Q
<statement sequence1>;/ {/ q, t( F8 y) M
end;' j: ~* X( a \) K# P' ?
(3) repeat 6 \4 V7 W! a, m! R6 ]$ \5 V
<statement sequence1>;" c) q1 c" z1 g& [5 B
until <condition>;2 R$ N" P' S5 T0 c- h' D& R. \
(4) for <condition> to <condition> loop
. p% l C& f! O# [* W <statement sequence1>;( Z" H0 M$ ], P$ B
next;
3 @6 \8 O. b! y, Q. R, u5 j3中断语句
$ S) @: L! X- f% b8 k. U% F$ { waituntil <condition> prio <integer expression>;
+ ?' O0 W% K4 m" a
. X( j+ |' v" E* R7 `, E. O3 q0 E; Z& l
以上为常用的函数！
! a g% c+ I/ D还有很多，如有需要我把资料发到你邮箱里 , R/ r( s H+ P+ Y* a% P6 t$ q; [
1 X/ X2 R2 k/ d) L6 O' E
9 p, d4 O; X9 m* ^2 Q8 ] B4 v: P3 v, C4 ?1 f
' O* } v% e( v2 h, q0 p) @, ^
! j5 H1 \9 |9 U4 f. h: W p- v7 T$ j& n' o5 Z
6 t- E$ D$ f! U& _9 d7 c# K* D+ ]
" e! P1 q3 B2 c) i8 e" _7 H' h* p% |% u
2 u; g& w: V9 R9 @% v$ z4 F+ K' H
|
|
[复制链接]
