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发表于 2012-11-13 08:48:12
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1判断语句
! X/ r$ i8 u" ? if <condition> then
, e0 C8 X' W- c5 ]6 i# f, |+ }# O( a <statement sequence1>;. \# d6 Y3 ~: l- Y
elseif <condition> then" ]8 ?3 D$ U& U/ s: X
<statement sequence2>;/ V% m! J3 h; [
else - v" V2 _/ x$ ~; N( n: X% w1 f% R
<statement sequence3>;9 N5 h: c0 B2 C0 r
end;. q2 q7 V F: L0 Q8 ]. o4 {; }
如果分支比较多，用：) J5 B# T4 i2 R q% N' e v
inspect <expression>
- h* ^9 b1 V" i- c" {) J! C& g/ D when <constant_list> then
r! A5 T2 a" x <statement sequence1>;
& U6 u1 g* P" o2 a& r when <constant_list> then
3 f; N* |4 G: o! t3 T4 P <statement sequence2>;
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else
$ q3 G2 j9 D# ? O$ k+ n6 f& R! [ <statement sequence3>;5 J! r# |. j+ s9 A b+ y/ v3 p
end;9 W [0 l1 }; r; Y2 s
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2循环语句
7 t3 r d8 \0 b0 n+ r$ T (1) from <statement sequence1>- T, f7 W, ]! U3 N! Y: J( l# {
until <condition> loop6 D$ j' N( q7 H7 W; Q
<statement sequence2>;8 b6 o/ D1 U6 _) J
end;
+ y6 l( J/ i2 m) r (2) while <condition> loop3 y0 ^8 X- U: {& A* X- M
<statement sequence1>;
( S0 R2 @1 \. f; p `. P0 Q* P3 N7 U end;6 b/ w/ A3 p) J2 C5 s6 y
(3) repeat
. u: j! o0 E) X4 S5 } <statement sequence1>;
: S. y9 z; S j until <condition>;
: f4 E3 {) t: B$ G$ V (4) for <condition> to <condition> loop8 e9 N5 O* ~0 A/ [
<statement sequence1>;
! Q( M6 j( S3 k8 g8 A/ T next;4 t! i$ |- {! o) [ K" K- v
3中断语句/ M b5 H" z. b
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 \. f( f0 Y$ D! ~$ ~) P还有很多，如有需要我把资料发到你邮箱里 9 R- Y0 w. [$ B$ E
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