|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句4 ^6 R9 C6 C1 s" F* J
if <condition> then+ Z* ]9 D! K1 U# H" l. B
<statement sequence1>;2 ~' B% r( ^2 G/ X2 C
elseif <condition> then; z- @* @& {& b* D0 s) X/ ]
<statement sequence2>;
$ L# v) P/ P" \: ]9 k" { C else $ e$ y. C5 n) i& @4 q5 t: h2 o8 _
<statement sequence3>;( E1 R' ~! ]0 a$ d
end;4 ~; ^- w( u1 a1 i% p
如果分支比较多，用：1 [1 x" _& V6 j( Z( H- d
inspect <expression>7 v$ N" J4 R: T$ E) ]% j6 L: g
when <constant_list> then
2 t- b" P% w3 R' m3 R! B* j <statement sequence1>;
: {$ Z2 P8 k8 u: x when <constant_list> then
: [/ l* m, `5 f; c1 w/ j1 z! O <statement sequence2>;6 R* l# ~5 q5 Q# A7 f# n% }4 F
...1 e$ Y& B/ _: L& ~9 @4 O
else
8 c/ G% [2 f! N8 _ k <statement sequence3>;
7 ~1 J* }( @ u9 r5 X; C, Gend;
' d8 f, d$ D/ L3 _9 c! l4 z1 ]5 _% `3 x! `
2循环语句
; }; U m/ H3 G! m (1) from <statement sequence1>( d; \* q6 c1 q0 j% P
until <condition> loop' w$ \+ t2 b4 ]
<statement sequence2>;" g1 l) W9 k* x# l, e& q0 e
end; e C6 n- T; k5 P4 y
(2) while <condition> loop& C2 R1 G. F" a0 _0 {( \/ c/ i! h
<statement sequence1>;
5 h" I0 M: w9 j end;
; p' f! F& s$ A# p% w (3) repeat
! Y4 {- F8 [/ E0 k0 E, B <statement sequence1>;5 b3 Q# m: X8 T2 R) f( P
until <condition>;- ]1 j5 d5 {6 ~+ z- l
(4) for <condition> to <condition> loop: m: [, |8 t4 w! p6 `
<statement sequence1>;/ W7 S: B+ h ?! Z1 ]
next;
r) H( @$ x5 Y6 e3中断语句
8 X# I/ H7 v; \: Z0 M; g: v2 C6 z waituntil <condition> prio <integer expression>; l' _, d* R2 P0 d7 t4 e% ]
0 J! Y4 `/ A; g) i; R5 h' f" c s' B) s9 z; m1 \
以上为常用的函数！
: ?8 _6 j* O" v' |; {) H8 L还有很多，如有需要我把资料发到你邮箱里 ( L' |' A+ C$ t. @5 R' v
# U5 x% m. t/ u7 N$ |) @
Q$ M+ b' K* s" Z$ U
! c( ^0 Y. H/ ` K2 A 5 S0 q7 K$ T- _0 c' Y
: L: `9 g2 Z* c% s
) [1 W7 B* F0 L9 b, I/ n
1 h# P ]" X# k6 E5 H9 z
3 Q& p+ l" ~4 A/ h# O
3 |+ ^* l9 `: X0 d+ t7 P- q/ O 8 E* _% U& ~5 d& M* @; z1 h9 X
|
|
[复制链接]
