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发表于 2012-11-13 08:48:12
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1判断语句6 U2 H1 u7 s c, f, `$ S$ C: h
if <condition> then
" \: `: L% I3 V; K# I <statement sequence1>;, M4 ^ F4 X# B( B! k# X/ t
elseif <condition> then" c* t* L! G% g/ D* u- o
<statement sequence2>;
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<statement sequence3>;- R# j% n' R3 v& `, R2 E7 G
end;7 w4 f3 j. L' V
如果分支比较多，用：. ^0 t& P% x c1 |! E: x' w j
inspect <expression>
) u& d& s( Q5 t. s/ n' q6 S9 ~ when <constant_list> then; i2 `; C `! W2 D- M
<statement sequence1>;
0 Y2 c0 x& j( V! a; V! _4 H when <constant_list> then) A" {6 L& r8 [/ d, v
<statement sequence2>;, a$ s) F5 {( ^& A8 `( `
...
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<statement sequence3>;
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2循环语句% H) q( k* c+ E
(1) from <statement sequence1>
1 V' K4 X2 N! P/ K ?# h# h until <condition> loop
l! z& M' ]0 `( z- B9 \ <statement sequence2>;
V J& U. k8 |$ B end;
F& r1 X& g/ l5 Y% p (2) while <condition> loop
; I1 J7 T; K# m7 P# K# x <statement sequence1>;
; X5 s* a3 f3 s- j1 G end;
6 n" I( c( _+ M$ A7 |% c; y" { (3) repeat
$ q$ y6 t+ C0 b <statement sequence1>;
8 o1 F, V: z+ ~: m+ d until <condition>;
6 r6 i d. h) [) x: o# Y (4) for <condition> to <condition> loop
; d M8 M. p" j# C <statement sequence1>;% X0 W. k7 s( B& Q6 R* J$ {8 i
next;0 s+ C: `: S( w1 H% D
3中断语句
! r% g- ~" y+ o1 a2 ]& m. E waituntil <condition> prio <integer expression>;+ p" K" e+ r {. g( q
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以上为常用的函数！
. {9 u, y4 g @+ ?5 k; ~* i. _还有很多，如有需要我把资料发到你邮箱里 - e5 k9 J! u$ ?8 ~
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