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发表于 2012-11-13 08:48:12
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1判断语句2 m- W8 @7 \/ n9 I6 T
if <condition> then0 P+ Z, O5 v& H" I2 H
<statement sequence1>;
) Y+ g& A8 V2 c& L' s5 { elseif <condition> then
: {& v# @* m( U. L* @/ G4 e2 ? <statement sequence2>;
: L3 D) _6 G2 m& ]& o$ z7 l else 2 O' r, u: a) Q) V- f6 ]/ ~! s8 Q' F
<statement sequence3>;
% m6 Q+ ]! U: Y" @& ]# ?2 ~1 K6 m end;
0 K- X/ D# o8 E/ S& c* c: Z如果分支比较多，用：
* ?1 ?. N6 j+ o" e inspect <expression>( o+ _) p) L: U U
when <constant_list> then
$ @. R: `- g( ~ t, K5 x9 O# l' q <statement sequence1>;
1 a7 J2 Y, c. f1 w- G, ]+ G3 o8 ^ when <constant_list> then
! K& G y) \- F$ G$ S2 J( F5 Z1 e/ p. e <statement sequence2>;' n e: K; o# |3 W" @; V
...
, g* F% H% y: o; Q. G- ]/ z6 P else
4 l1 F1 ?' N1 C* @ <statement sequence3>;
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2循环语句
' J4 t2 c4 {6 j) P" {6 C& P (1) from <statement sequence1>
+ D, e1 x7 [* h6 H; ] until <condition> loop
" T9 Z) |9 v3 s z <statement sequence2>;! U- i9 B( i% Q3 R. c
end;
# ]0 a1 o* R/ E" X* o a+ O (2) while <condition> loop
. U+ Z- I' W( G, F" f <statement sequence1>;
" F6 U2 q+ u' o3 } end;* u- F7 ~% M% X$ |: u! Q
(3) repeat
6 t4 f9 I3 l4 N& {2 E; q( a <statement sequence1>;
& X* q7 h7 } |$ p9 b# {1 [' h until <condition>;
8 u7 \0 }# \! v" Q! C; y (4) for <condition> to <condition> loop
: u: s) m& ]& v; W" u <statement sequence1>;2 Z# L3 ~% l8 e4 Q7 A
next;7 }5 j) `, U0 A
3中断语句0 A8 h( Y5 c% G
waituntil <condition> prio <integer expression>;
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以上为常用的函数！" h. t& j0 E% e. F8 U$ `
还有很多，如有需要我把资料发到你邮箱里
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