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发表于 2012-11-13 08:48:12
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1判断语句
6 y( G& _7 d( N8 p. z if <condition> then
; M8 s$ c6 O9 l$ {# V+ d1 J: ` <statement sequence1>;+ O& w! k* m( a8 ?! S
elseif <condition> then
; o h# p7 z. o. @3 r& B; V1 `! M" s <statement sequence2>;+ U+ X: a+ l* W5 G6 Q0 r5 i
else : R) I& l1 o& F; F8 F# n
<statement sequence3>;. S- [+ g4 g2 z4 A; y: K3 K1 Y3 D
end;
5 n& C6 B" a& q9 a# [' r1 M如果分支比较多，用：
. W( }8 V, L \ inspect <expression>& q: K1 t& M% z
when <constant_list> then
F( p; p( q/ K% T9 D <statement sequence1>;& s# R. `0 D$ X
when <constant_list> then V+ x; p! j1 V* V7 d3 I+ j9 Y
<statement sequence2>;" J2 a x0 T9 v! r; ~0 J' K ^
.../ B- p$ H1 ?& V. }4 n+ E
else3 @4 V' E" W3 h: K
<statement sequence3>;
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2循环语句8 B D' Y9 S8 L4 C2 d3 x
(1) from <statement sequence1># K4 Z) _# [2 K) C' n. I
until <condition> loop u! W0 F: r4 j8 o" r: |
<statement sequence2>;
8 T( V& ^3 A' S/ K7 \ end;
1 |9 M. b# k |) c" C. \1 ] (2) while <condition> loop
! {6 a& n% P1 ]) ` {0 {! h <statement sequence1>;
9 w9 V# K( f/ ]% u& J; { end;8 |) ^ ~2 \& U% ^
(3) repeat ) T6 s7 H. _6 X+ n7 M6 u( P7 O
<statement sequence1>;! p1 @! [4 |: Y
until <condition>;& q* p) n3 F: o: z8 o* D; k
(4) for <condition> to <condition> loop/ Z" P% h6 ]3 {; X
<statement sequence1>;( }% @9 }! ] o: @! S D& X9 t |# ~ u
next;+ y' m9 E+ g7 h' F( b( ^
3中断语句! u0 h, S$ @' W$ Y" n6 b. c6 x3 n% y
waituntil <condition> prio <integer expression>;3 d" }2 C9 h- `- R
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以上为常用的函数！
$ L1 Z/ Y+ n: J* x& i还有很多，如有需要我把资料发到你邮箱里 : n9 d6 x' a8 i! q/ y
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