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发表于 2012-11-13 08:48:12
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1判断语句" y* f: I* [. _3 {5 s% b
if <condition> then
; D, o! L2 m9 q) U. ^0 x! U <statement sequence1>;
5 ^: [% s* Q! A/ u, f3 E' w elseif <condition> then; W6 Y/ \9 |; o# N8 O: r. }( ]: x
<statement sequence2>;
- V$ f0 Z9 r; }* Y; o else
* E5 }; |7 y6 d <statement sequence3>;4 F, c8 _: S4 G( m/ U* Y8 [ M
end;
0 q" D$ F6 s! x$ s$ k: h+ S! Z C如果分支比较多，用：
5 v: L6 Y0 A) h inspect <expression>
9 W' T, R* X* e+ g9 M- l when <constant_list> then
2 `' i' H. E) \ <statement sequence1>;
# a3 R2 P) n+ x9 C, ]$ t when <constant_list> then& d8 q) h8 y. T2 c, W3 K
<statement sequence2>;7 a5 D5 D$ ?6 Q6 R4 d: u2 D; w! _
...
: h6 r- g7 X8 f# b. B3 y else
$ r3 N; T3 }% N, h <statement sequence3>;% b+ u& a' \ y0 z
end;2 H2 m6 t: f! `
6 Y% M- \2 U* _$ u* P* S/ v& B; T2循环语句. o1 ^. _# k! ~6 D) O" b% f4 t% y) y
(1) from <statement sequence1>; C a* s, P5 \
until <condition> loop
% i# F$ N9 N( }' V <statement sequence2>;
1 x# f; _* j- ` end;
$ A5 F4 N9 `/ G1 h9 ~- w; E (2) while <condition> loop
6 E+ J+ H- H' O, _ <statement sequence1>;
7 s9 X, p/ U+ e0 g# e: r1 K3 P end;$ `0 [3 f0 g& [5 H. t0 \/ n
(3) repeat
" h. _5 [' k/ S, [. a7 @ <statement sequence1>;% y" U$ B- Q y" F9 p% F/ J
until <condition>;
- t+ K: ]9 L+ j- l: g (4) for <condition> to <condition> loop
: E- `! y% V/ @& ]8 U4 k <statement sequence1>;
7 R. R, q' s& |8 B, \- V( c- W+ O next;
- L4 T7 {' h3 {. L' ^3中断语句
! V. L7 C* d/ \7 ~ }1 o* { waituntil <condition> prio <integer expression>;9 I/ z7 s& o% a- m+ q+ L- o3 L
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以上为常用的函数！9 i. q: p" U) ?
还有很多，如有需要我把资料发到你邮箱里
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