|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句) O3 l4 V, T7 c! a
if <condition> then
_. d n) g9 a6 o( U& H <statement sequence1>;# E9 d% t8 I U5 t% `. [9 m) j" r
elseif <condition> then" ~ [/ W3 t4 T" k; p, W
<statement sequence2>;, G; p1 V1 f! G$ t4 ~8 G, D& G
else
1 C- l5 L1 l4 D. U1 [' w <statement sequence3>;
' m. n7 h7 X! u S4 V end;
7 E" ^7 o6 _; I: }8 v2 c V' u如果分支比较多，用：8 A2 l: s T* m
inspect <expression>
$ w( B( @; F, d+ l0 h1 `7 a when <constant_list> then- t3 _) V7 m2 a4 k% |
<statement sequence1>;
! }+ S1 E4 y9 H9 U3 J& { when <constant_list> then H, c" |9 }) |9 }- r( s" g- l( d
<statement sequence2>;1 D \3 [ E1 ]
...
- g7 g7 c7 ^. V# T9 O else
- U8 L1 x* C0 w4 H$ [ <statement sequence3>;
4 l" t6 M& L% l8 `end;& W6 r5 X% \) b1 c- h
" z0 K* w! A' j2 C: t2循环语句( |, B8 \ L0 z2 f8 g
(1) from <statement sequence1>% _% X: \* z6 F4 K6 W) `
until <condition> loop
4 @/ `7 r/ ~2 V <statement sequence2>;" \1 X( N4 A% \: m0 w8 b, I
end;5 l2 M4 R. z( o1 }
(2) while <condition> loop
, p$ l+ }- X0 D! [4 B$ z* x4 X <statement sequence1>;
: R' W. e9 W$ ^7 e end;
# p/ B6 H# U+ h% g' g5 I (3) repeat
0 p# C! e" M" o% l0 ` <statement sequence1>;: ?" I/ Y: v( h. A& P. B
until <condition>;4 _7 N: }# q! t' u
(4) for <condition> to <condition> loop: S6 X% w% ~5 K3 @4 {9 h O9 |: _+ r
<statement sequence1>;
- b6 h" B) Z6 v& p0 L next;# s' j# D5 _; S, V+ P' B3 a* j
3中断语句
: {5 e6 ]& L P, k2 |4 `! B waituntil <condition> prio <integer expression>;
( {4 ]7 o3 d2 T8 ~
+ R4 z7 G; ]: \& i5 |) {4 d
N" {! t; P8 T' O2 j- Z6 q- ]9 X/ \以上为常用的函数！
; l; g* e4 v% `8 y& K# K还有很多，如有需要我把资料发到你邮箱里
9 o- c' o0 U8 Y3 Z
( P# h$ q& W; V
, k( n6 f4 q t* z! O7 E) l
) M- E( {3 m; |" h9 r* S( v+ T : H0 s. s" Q# F$ D
* U( D# u+ m# |3 \4 \6 t5 w- q4 [9 V8 l" c0 Q
- m3 H& V! v3 Q
: B2 o T) A7 R" U' C& H2 [
- ~, @7 C1 [ s! A) y- v& D8 b# a% L
5 ?' t8 u6 T. A+ G- [- C- v$ u
|
|
[复制链接]
