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发表于 2012-11-13 08:48:12
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1判断语句
0 J! l' D" M3 g5 m if <condition> then
7 ?3 J& R9 B9 N1 I5 ?) @ <statement sequence1>;
* B( V; }+ ^8 Y elseif <condition> then- z, Q( x( |$ z0 w9 Q! {
<statement sequence2>;
/ E, w) I7 n# B else % y, ]% {5 I) \* h& Z5 m# b4 A
<statement sequence3>;3 N1 m* s# ~1 C" f5 X
end;( I2 c, ]! d0 }4 _) F) d
如果分支比较多，用：
" }1 b8 o3 E. H V* p inspect <expression>) a. S1 y F% F! O1 g; C
when <constant_list> then0 C6 g& G1 j) M4 `; B
<statement sequence1>;- z8 [ A( i+ t" l& E* M
when <constant_list> then
# r# K% Q# ]: l c <statement sequence2>;
0 R* O, q4 `- q) e$ C: t8 a# u ...
# I& ]8 b3 o% r4 x( }( a" [ else2 C" m. ^$ f* c' U$ _2 {5 \
<statement sequence3>;" H( L+ {' L4 W# L, X" a* U
end;8 _6 n4 t1 N U/ U2 b8 k: s1 g
' A# o8 K6 q3 D/ }# V2循环语句8 `: ~: Q5 K4 B3 c, a8 ^7 Y3 T
(1) from <statement sequence1>
5 o+ g3 c- q8 d* m5 `& \- c0 U until <condition> loop6 r" {5 U( ~! ]7 a' h+ ~0 D% X
<statement sequence2>;9 w% G* f d3 f# q7 z+ J
end;
" D# [- }( x* @ {% x# U: C2 G (2) while <condition> loop
% v2 L! }" q8 E6 L+ L <statement sequence1>;
/ e1 ^1 D2 F8 @; m end;/ q- @! G' u0 {) O/ x# t
(3) repeat
( E2 h4 g1 X/ b) ]5 B <statement sequence1>;
* [! K) A# v3 q }& j: ^ until <condition>;' f9 ~/ g# q4 q- Q
(4) for <condition> to <condition> loop$ L4 m6 M! l Q- |
<statement sequence1>;
+ x- N: ~9 u4 w9 ]! Y1 d2 u next;
9 A/ E+ h' r- O: S6 a" b. H3中断语句
. w" |/ k& z4 A8 p waituntil <condition> prio <integer expression>;
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以上为常用的函数！
2 ]( f; c& W8 I7 \# d% U+ y& I2 y( I还有很多，如有需要我把资料发到你邮箱里
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