|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句" Q8 ?8 j+ X/ Z) n5 _# t% T# `7 B
if <condition> then9 \6 h* M/ E; G7 w
<statement sequence1>;
) f: c9 e! x: m0 A9 k0 O elseif <condition> then
8 w2 V, b+ L2 M& H8 [" d <statement sequence2>;
% c# R! j, e7 m6 z else
* ?9 w# l- W8 H8 d/ W. g <statement sequence3>;+ P5 G' A+ q+ m$ U3 r- S( R
end;
; O; ^: `" U i$ u1 @; r5 `3 o* W如果分支比较多，用：8 w1 S; g! |; y/ r+ V
inspect <expression>
; u2 E- e" `3 H7 x when <constant_list> then
' o: T( z3 F+ u" o <statement sequence1>;
5 P7 K) R2 g% o. t, {( y1 X" m6 d when <constant_list> then& L( t1 c4 d3 q, k% Y* `8 n( c
<statement sequence2>;
" j9 z6 T0 |! ~0 ] ...
5 x+ T$ e3 p) ^1 S+ I' P3 ~ else
; Q$ e; O! W( z4 j2 \: M <statement sequence3>;
, s. N0 v/ }% \$ g" `" ~$ cend;- p8 E/ K! h4 V9 b3 N
- Q& n9 J. ]5 Y* i, M4 M) e
2循环语句' |2 z+ Z x t* {6 Q/ N
(1) from <statement sequence1>
5 q/ ~( @5 @) s( n7 W! a until <condition> loop9 \2 k: w0 t/ P4 P8 n$ `
<statement sequence2>;
( E' q, X( o j4 ?3 A Z end;3 {! S( I9 J( p2 V
(2) while <condition> loop
1 y7 |* x7 k& k) {3 o, {: W( g <statement sequence1>;
& Z6 l% Z1 r" E6 x end;! ~ E, p' s, X% V5 x" a
(3) repeat
9 W" N s: ^ f9 P. y2 @ <statement sequence1>;4 Q. Q5 L" H+ [) M* {# {( @; F. U
until <condition>;0 x6 I% H `* F6 w8 ^& D
(4) for <condition> to <condition> loop& r! y' R1 E& Y
<statement sequence1>;
8 J/ a. m! I) U t& \ next; N6 D! O9 I8 G7 l1 _
3中断语句
1 q, q. B! A; s# j waituntil <condition> prio <integer expression>;
: Y) E# B, [; k; \
2 K& N$ I3 h# G3 l6 O
# z" b7 \- Z) y- V* t5 m0 b/ r, I以上为常用的函数！- H3 S3 k0 ^' @) K2 [0 y3 ]
还有很多，如有需要我把资料发到你邮箱里
7 [, X3 \" z u1 S2 D3 N- ~ z+ T; P- h6 v) l' B
/ g: G8 _9 L7 W7 |( j/ b9 Q8 w
1 s" a b n( C0 {
. d3 c' s: z/ v6 ~% a/ |' e! S/ |- l1 y5 n2 o) D2 T. Y
' u- r- c+ Y2 H$ ~/ e V8 `4 C/ }7 Z2 @+ G( i
% e$ r1 i- h) a9 D% F' N
3 N! L+ n. E# s
2 T( r3 {, L* S: E |
|
[复制链接]
