|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句. G9 L$ v# n% Q. p/ {% ~7 P
if <condition> then! \: [9 j1 e* L/ v' O: ~. d: |
<statement sequence1>;3 b5 Y( `8 t) t1 z* x2 b
elseif <condition> then
# j: B; m2 r7 K+ X6 q$ {. J0 C <statement sequence2>;
' M$ c, C. }: p: z3 O else & D9 E j5 M* E3 P; J
<statement sequence3>;
0 L$ I1 K# _) O end;
& Z' m3 H* a, J/ ~$ x如果分支比较多，用：
3 i" o$ H4 T0 ^. P! V inspect <expression>4 m+ m% V& E* W; i5 ~, [9 ]
when <constant_list> then
. ^5 Z2 \$ s" a <statement sequence1>;
3 _) D+ E# J) j3 ^7 |6 \8 ]) f6 h1 f when <constant_list> then+ T" W5 _/ n4 _5 J
<statement sequence2>;% \. W" i& H8 Z7 \' S, A; b- }- v
...+ {* P- W" I" z" v# U
else
* |# T" p2 |) y$ Q9 ? <statement sequence3>;4 C# ]4 f, `8 L) H. A
end;
: p6 n8 _9 T i# ], p4 c
2 v: ~/ y$ w7 p& e2循环语句+ ^( L& J0 O) | d s9 i
(1) from <statement sequence1>
4 }; F* l1 }- A+ b/ r until <condition> loop5 ?$ r- u7 v& H9 t- K7 s
<statement sequence2>;+ R7 D" e9 a3 q& n' N# O- i
end;, B L- @ `7 O- L/ ~3 A4 u1 _
(2) while <condition> loop, c' ]# Y0 u p7 q
<statement sequence1>;) `: o- u- V! l; `+ A
end;6 ?; i, E9 y4 N+ G7 ?
(3) repeat
) d! \1 s& A' i! J2 R+ B <statement sequence1>;
7 z5 `/ U2 U% y7 ]/ _ until <condition>;
* ~' }: G+ f# D9 {+ c (4) for <condition> to <condition> loop
+ ~7 a/ b1 A% C2 G" f: ?) @ <statement sequence1>; N0 j5 I5 K7 u! t: E. E+ l4 {
next;( r$ G9 m- W# h6 a
3中断语句
, D P `) z; Z& E$ T F- l waituntil <condition> prio <integer expression>;# Z6 o9 j! W+ m5 t0 w
4 s6 Z/ Y1 h) G L
, x9 C2 D& u1 W' J# o以上为常用的函数！
; o0 c; Q# t- _; `* J. D$ R( l5 M1 N9 h还有很多，如有需要我把资料发到你邮箱里 # @) C5 Y9 P4 S
8 f: g: {; @6 j- L- ]
0 N, ?1 ?" a9 O/ r9 V# ]$ ]
& p1 j8 ?5 p* X 0 _7 ` r. G# U0 G
+ V; I# [4 k) Y/ `1 @& L- F* F% x6 |% X# a$ }5 [
. Q5 v2 M D3 M# v5 ~2 U
- s5 t3 e0 _0 d
- f% H: P+ H' m7 ]4 C# Z! j/ @
: u% N& m9 Z0 C2 c' R a |
|
[复制链接]
