|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
( U5 |; S, l3 g- R# e2 e/ b, @' x if <condition> then O, G$ Z3 W( m- L& v; i( j( S
<statement sequence1>;
0 ]" k4 y: L% O' z elseif <condition> then
( D) ~* F+ D8 p8 q' v# ]; Q <statement sequence2>;. B6 q( q& W. W& l
else
# |2 _" c/ H+ F8 P0 k8 y1 L- X <statement sequence3>;
2 C4 g4 ~8 y. c end;
* t6 _; V# a- i, T$ A& {3 q% ?9 V如果分支比较多，用：
- U( }( M& G6 _0 W9 D" w inspect <expression>
4 Q# C% O4 w% P# ^5 x4 w$ o0 M when <constant_list> then
: Q, d1 q+ d/ y: S) @' d9 S <statement sequence1>;! C. ]$ O9 o& h
when <constant_list> then
6 [. \1 p8 ^0 k- A" l: {$ e <statement sequence2>;
" f$ v, R3 T; U8 V6 _8 | ...& g, _7 q! }$ W; ~; C& _
else: p; A& {. P% T! l, k
<statement sequence3>;) N% |1 l7 D/ d E& t
end;0 w6 z8 I! }+ K3 D* y' [
& b" `8 T. C5 y$ s4 }" o+ D- g9 K
2循环语句0 B$ k; J$ y, W5 C% }7 I
(1) from <statement sequence1>
+ V( Q6 T- F( y2 D, `$ ~9 z/ u7 F r until <condition> loop% r. h1 s% Y5 ^! i& k1 [& {
<statement sequence2>;
7 U2 c) L+ a- L$ y" E2 H6 e& | end;2 z4 d" W4 C9 j
(2) while <condition> loop [& Z U/ a+ ^8 N+ g$ e4 p
<statement sequence1>;
0 W: h& D; V' W: t; R9 `* A: |7 [ end; z4 B: U. N1 m% I; w% \ w7 d5 I
(3) repeat $ x9 O6 S* M( M! ^( ]
<statement sequence1>;
: T @ y; P( H7 \; q until <condition>;
# Q9 B7 I2 C$ s) h$ N8 } (4) for <condition> to <condition> loop
; `+ e5 g! J/ Q% F' J <statement sequence1>;
* B% P+ {: i. W n! T6 Y) m j next;
: S$ s" u5 }) B3 y" w3中断语句
& {* v; H3 Y, f" _. ^: ^; r waituntil <condition> prio <integer expression>;
f0 W! O7 x: m& ]/ A6 }& W7 j5 C b; h9 B, c2 [
+ J! g q& R/ O. m- g
以上为常用的函数！8 e7 [5 t. |0 J+ f; U$ Z! |- Q
还有很多，如有需要我把资料发到你邮箱里 % j( _1 S4 p; G* \6 J
" h" @0 D; ~4 A) @6 S7 w
# U% f4 F5 |. ^" C7 X# e# D8 E3 Y' ]/ L* {
0 f! U/ @) c6 E% S d* E: h
/ _; _( H1 h& `
1 v( i A: U C( Z+ Z5 h
5 [- l2 W) C( j1 x
, T5 j: r% g A8 Z
9 X5 N6 E; u# @( U. e
. X1 y! y; z5 y7 o |
|
[复制链接]
