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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
' |6 D# K$ G! R U' g if <condition> then
& Z; @! y. V, W: i. ~0 ]0 R7 @- B: u <statement sequence1>;
& J g; j/ h& s) `. f, y elseif <condition> then) ?7 `4 F% V; ~9 ~
<statement sequence2>;6 _" A6 k# h* Y8 U5 G
else
" Q) d! K" d8 B: `8 c& H <statement sequence3>;" h0 L4 N/ x* {4 [$ f2 ]
end;
- u- |8 N; }' N3 e. H如果分支比较多，用：
" Y( ?8 j3 V8 C9 P: E) S+ p. o3 I inspect <expression>
* a: B# t1 R j when <constant_list> then
" c6 Z. m- u/ E! m. U( K <statement sequence1>;% k r" i _5 o& q( g
when <constant_list> then, ^7 Z+ m2 \7 @
<statement sequence2>;3 [8 _* o/ F0 k" g' Y: {
...2 w* {, A/ D4 m1 c
else
7 B$ M8 h1 |7 K, y' a7 Q <statement sequence3>;; M/ d0 `/ Z7 k
end;2 q) y5 \5 W& ]" v
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2循环语句
2 d) j3 F2 x5 Y0 C# { (1) from <statement sequence1>
4 H' k) W) S9 w- z" Z$ U until <condition> loop
1 }+ O, ]# F: w9 Y5 O3 g <statement sequence2>;6 {) d+ N6 O) U6 @
end;% ?; V* @ ^/ Q2 y) o" G$ x1 g
(2) while <condition> loop
9 J8 Q9 \! s4 K! h* ~; k6 m <statement sequence1>;
I# V0 F$ }0 l+ l* x end;
+ t5 H+ c( }* U, N& Q (3) repeat . z% c2 w8 u! C, }* I+ P; A. H
<statement sequence1>;7 i' R8 j* b4 e2 B1 T
until <condition>;
, h: e; u+ \* A2 K. P7 Z4 C (4) for <condition> to <condition> loop
+ x# F5 e' d1 g+ o" M' q$ N: k <statement sequence1>;
+ s. E7 p0 j; y7 K$ ?0 I next;* h9 l' Q, E; [: m
3中断语句6 [# z0 D" a s1 q
waituntil <condition> prio <integer expression>;
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4 `) N X: E ^8 J2 d以上为常用的函数！
! C8 w/ N; L- \$ z5 r- Q" ~/ c还有很多，如有需要我把资料发到你邮箱里 $ C, Q5 i. ~/ g4 l
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