|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句: ^) y3 Q i5 \7 _
if <condition> then
# O, ?- H+ B0 W4 T3 m. [* w1 r <statement sequence1>;
) S& i1 j6 u1 a2 o) C3 \ elseif <condition> then
& h( }; T5 [! K2 U! A- P <statement sequence2>;
& x: E4 m, P# i" t! l; h# z0 z else * s+ ~0 W8 o% k- w
<statement sequence3>;
8 Q' A) ~, b# U/ J end;
* T4 K7 ]' ]6 A( ~+ W# c' j如果分支比较多，用：
' v3 @$ j2 u: L5 S inspect <expression>7 A4 \# D0 h O( _3 D1 _/ b
when <constant_list> then4 l$ G m( V$ \5 {9 ^
<statement sequence1>;- | j8 H+ x# p; H. m8 }
when <constant_list> then: {1 X S* W& q1 \
<statement sequence2>;
! ?* r0 D+ x; A m( B) V9 l0 c ...
) b* v+ r& F& a- {6 f else
5 Y7 S; a. u" M) G+ `( G& @, J <statement sequence3>;8 F, v- K- [ D$ r" Z% w8 C5 D n! j
end;5 ^* Z. E" ]3 U+ S: j4 L6 L
% u9 J: C$ A% G8 }( A! `" H2循环语句$ L' l, u" I! {8 l$ G) e9 \9 U
(1) from <statement sequence1>
6 P, k" g! c! _ until <condition> loop
3 F3 A- `) Q* o <statement sequence2>;
! _. |7 J8 \0 R; z8 ~3 Y end;( t& K5 T, n* \9 f
(2) while <condition> loop
/ x% |- b$ u$ e <statement sequence1>;
8 B8 `# f$ T4 ^7 o: L4 j* _ end;, ~! J. u9 n, k* i3 A6 y3 L. j+ }
(3) repeat
5 J5 h1 U/ X7 ?# e+ s7 | <statement sequence1>;
- }5 I. }* v- @$ I2 \ until <condition>;; t) m6 e6 K/ v/ t" B
(4) for <condition> to <condition> loop
' m$ i7 C8 s ]; ~8 K& {7 e" K: M <statement sequence1>;
) J- v7 |/ @ `, B, j0 H# J- `" f next;
2 F" }. Q- m( x$ C5 Q6 y. X3中断语句' F* g- t' B8 }2 L
waituntil <condition> prio <integer expression>;
; D0 R3 \. f% V o* ?* r( X% }2 n3 A; F# K
1 s7 s! k: V( D5 a7 e
以上为常用的函数！- i5 ?# k; [1 J
还有很多，如有需要我把资料发到你邮箱里 0 a+ h8 e* T0 a9 g
0 ?3 [) l- I& ^: |! v( D0 n4 I
" \( E" `- O0 |/ P" G8 P; J+ E8 S1 G& g, X* Y& f
; O: t8 n: p+ `6 t. J \& i* N5 T! P# b/ l. y
7 K3 {. i# N8 E
5 x8 R" A; t1 N L4 [# \+ q+ _" I3 z: r1 U0 {) h
: V# E' ` R9 I: q8 h' v
+ j9 [- o2 n4 L% F9 X3 E
|
|
[复制链接]
