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发表于 2012-11-13 08:48:12
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1判断语句$ V, T; _: v2 f! \, ? a% ~5 W/ H
if <condition> then% p$ N! }6 l% n, T1 c
<statement sequence1>;* q1 ~0 t' V C. }- [3 t
elseif <condition> then
6 @0 {. q1 D" Y( V <statement sequence2>;
# N, K* |% w/ q. v8 B$ f+ B, C else , J8 y: m7 j T9 T% A2 X$ i
<statement sequence3>;
5 D# H% i4 |) B. U/ [- a end;
& `7 t! c* e+ V1 f如果分支比较多，用：
- D0 h, t3 a# Q7 {& Q4 m6 \9 g inspect <expression>
( T0 Y+ C/ ^8 q# ]! Q/ U* J: A* p: \ when <constant_list> then8 O J+ A" x5 H9 o+ Q4 h
<statement sequence1>;4 @7 e7 Y7 @2 h* d" L+ f
when <constant_list> then
) X5 |% C1 g# l' [8 P/ Y0 e <statement sequence2>;" [; E$ C* f' R% k! a
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else
( x5 Q' I8 I, Z <statement sequence3>;
, Y8 {7 O& }( P" c+ Y" j3 l& A0 }end;0 K1 L7 j6 o7 c+ @( c5 H
! h% I2 ]1 f8 @! ^2循环语句
( p2 F) t# B1 h (1) from <statement sequence1>
* G. L& [) v: I4 o$ i, v- K until <condition> loop
4 ^/ V/ H% G# E) I. Z! M. A <statement sequence2>;$ J q' [# [. r2 ]
end;
8 R0 K- E" Y; T (2) while <condition> loop+ h: V6 k6 N" ~* }4 [# o6 B
<statement sequence1>;1 s1 {/ s& Y @1 G) A2 y; V- z8 a
end; p4 y% H! F% @+ c' R
(3) repeat # P3 b& |( T7 J/ z. |
<statement sequence1>;/ m7 z+ b6 ?+ ?, d
until <condition>;) h9 y# N" D8 H! c( m) @" ~8 S) U
(4) for <condition> to <condition> loop
. ]4 v, l5 ^& P8 o, t8 c' y% [) t, w <statement sequence1>;
' o& ^ M! r- p' B" s( ] next;
6 K2 C+ S, j4 Q3中断语句, q$ Z) q2 P* o7 U
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 Z( k- `' l1 M5 u还有很多，如有需要我把资料发到你邮箱里
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