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发表于 2012-11-13 08:48:12
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1判断语句" A8 D* _1 E3 n) z
if <condition> then$ Q, j+ X8 l1 W! y, w% x
<statement sequence1>;/ \' {2 Q$ d# F/ E; i
elseif <condition> then
9 r3 x5 o- Z+ P3 T9 B" {5 L <statement sequence2>;
9 d w W7 O+ i0 L else 4 c: y, P0 b: ?3 U2 L+ t
<statement sequence3>;' s( V$ w! ^1 I! |0 a* U9 W% t5 r' }
end;5 W/ p- F( Z0 J7 M, y
如果分支比较多，用：
- `9 G @/ V; c inspect <expression>' c t5 j! N, a/ {
when <constant_list> then3 T3 i' H5 ]& w% v Z3 X/ ~
<statement sequence1>;
: M$ f! D6 C3 ^( Z, H when <constant_list> then! P- g% g4 P7 Y% s
<statement sequence2>;( H8 G* Q! C& T9 i. k$ P
...* D x+ G5 w! t5 h( Z; y& b& D! R
else/ [4 F& N; D- e
<statement sequence3>;: q8 S: w9 m% b: N/ v
end;
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$ H& R3 Z" ~2 w% {2 U( l1 [/ q2循环语句! }! b3 M R. z X
(1) from <statement sequence1>
1 l1 v8 {- e {& ?: O @ until <condition> loop
2 k% R h6 Y( D <statement sequence2>;
+ f$ M1 V& M8 _0 c; ^( o end;
4 n/ A' S9 U& ?/ B (2) while <condition> loop: U N6 P0 s+ Q/ m
<statement sequence1>; P n6 R ~* ~5 `
end;
$ g) M4 X+ D) f; _# @7 y7 { (3) repeat ( ^% Z: Q1 ?: P0 d. a7 J$ {- a% e
<statement sequence1>;
6 X$ p- ~- C1 v4 m/ N8 J until <condition>;
q+ a9 z2 e, R! D5 H3 z- R (4) for <condition> to <condition> loop
' M- t5 @5 s1 S! b% d3 ?+ H3 l! X <statement sequence1>;7 }5 y& R. @9 }. X/ m, R
next;+ Y9 ?. C( G; Z
3中断语句
C _9 `& S0 E& e E waituntil <condition> prio <integer expression>;
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F6 R* a" n8 [! z7 {! a以上为常用的函数！0 ]3 M) i. `1 g: E1 a$ ?
还有很多，如有需要我把资料发到你邮箱里 * \! w, P+ g7 [. i- a
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