|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
s4 b+ L: |0 g% H8 ? if <condition> then
- A% h/ p, h" i& G6 L/ c <statement sequence1>;
6 w7 `9 w0 c$ h- L' ^6 P elseif <condition> then
! V- K2 B) A1 P4 i5 q <statement sequence2>;
( l- |) v7 W& k else
, K8 X2 Q% c% a$ f1 l' c) N <statement sequence3>;
% l! Y j: m" c. i( Y9 ~ end;6 P1 T+ X B; W3 }4 l
如果分支比较多，用：
" p0 s ]8 H/ N, o6 H% b( V! `' M inspect <expression>
/ I( @3 D, V4 X4 p$ L when <constant_list> then. y* _+ [* {* p9 z
<statement sequence1>;
, F, e' I. Z3 E when <constant_list> then% A4 _: b- N% V( p# ]1 O R( ?# P
<statement sequence2>;
J0 c4 G' \% N" |3 Y ...* i' b; h- Q" d, r+ @
else" g! |* D9 \/ R* e1 J, `/ e
<statement sequence3>;
, y7 d1 ^$ O) S- Cend;
6 L. U) F$ ~! H8 N
. h) I) F0 C9 l. s/ B* k; Q2循环语句& u% O6 E, s, w2 c
(1) from <statement sequence1>4 q, C4 {8 i4 W* k
until <condition> loop
' @" X* e! M" z- B8 v6 s3 V4 s4 q/ F: @ <statement sequence2>;
7 j3 D# Z" |' R1 v2 p! X7 H end;
+ e7 Z/ B9 J* w2 k% _ E2 O' p (2) while <condition> loop
' \( @6 g! k4 Y1 K$ x+ h+ j <statement sequence1>;/ {3 s" @: {& |( }6 y
end;" \0 G. N- S( \. G9 Q) n
(3) repeat 9 V, j: _# ~8 Y) b1 d6 [2 P
<statement sequence1>;1 W9 K* h* S) l1 W0 I' z
until <condition>;
5 B! a0 W3 z0 Q) d7 C (4) for <condition> to <condition> loop
' w: n6 D8 ]! F* f. S <statement sequence1>;, c" K2 f" d: F. r6 C( w, Z+ [# ~7 Z
next;. X6 \5 k5 ~1 r- [* {7 k% h7 O% }- z
3中断语句- W1 C. h1 G5 Z" F1 C" D( V7 B
waituntil <condition> prio <integer expression>;
( E7 r9 q: g! {7 x( j0 y
9 V7 }. X$ I8 @/ D" [; g
. k, g- `( b" e* P以上为常用的函数！: l7 i3 Y$ o) y. p- i8 R
还有很多，如有需要我把资料发到你邮箱里
# J4 b+ b* b N. i
" P5 [* S' D+ X" ^7 d/ x
* h5 h9 c! f; B+ U: X2 X7 j |' V( \! O! C w
" A* f3 k. G7 _8 g/ _6 Y
( C% f" Q1 p- J8 h% k7 W3 @! ~- q+ f
; ]. l* S4 c3 A# } P0 [& C
* j# v1 G+ B4 w0 V5 V1 H
) e8 q4 F8 y8 b4 ^
3 K) O2 p% i1 ~& w2 ~7 _ |
|
[复制链接]
