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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
3 G0 o( T) W& B if <condition> then8 a) O* m$ s. d/ s* O
<statement sequence1>;
3 m, w8 s. G9 B. r2 T9 ^3 s. A, ?$ k. K elseif <condition> then
- i; D) i; M; i& t( _ L, g/ ` <statement sequence2>;- Q: X/ S) b4 i+ [4 m+ Z
else 9 d! K- b4 v9 Q
<statement sequence3>;! l- n: r7 |# i! c0 ?2 g
end;
2 U0 F/ F/ l0 }( c& q, w# k如果分支比较多，用：
+ \, O0 P9 v0 Z }8 S3 H9 b4 X4 A inspect <expression>2 a) K* m( H% `$ `9 V
when <constant_list> then
0 y7 m" z2 _! u7 R' n4 D <statement sequence1>;6 p" e# B& F! ? ?; |
when <constant_list> then& M0 J4 {2 h' Q7 W* Z
<statement sequence2>;
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else
5 j' g9 D2 O0 \9 |2 K8 Z <statement sequence3>;( `1 \# p1 I- R7 Z+ R( k+ c, \7 Y
end;8 f/ \: U5 {* K) t+ Z
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2循环语句
, M# d* M* n' ^; s (1) from <statement sequence1>
; W/ t1 L7 x3 }+ x- F/ h. `$ t until <condition> loop
+ n/ z) ~: ]' Z' a; b. n <statement sequence2>;
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(2) while <condition> loop
7 Z' K9 q; ` q$ I3 F4 p4 y }5 x; g <statement sequence1>;" h' _. O& l1 @9 Z8 K
end;
3 L( k. S+ w+ |$ N3 r+ x( D (3) repeat
; v* |9 w `$ }6 i9 L' K <statement sequence1>;5 t+ j" V# p( C
until <condition>;6 U F; E7 U' [3 _4 n
(4) for <condition> to <condition> loop
! x3 n3 i* R5 s. ~5 Y <statement sequence1>;
) u- e' c \* T next;
, @+ t* I' p& j5 z2 }3中断语句
9 [) n: L( X" [: U) v waituntil <condition> prio <integer expression>;
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以上为常用的函数！% J% U' a9 u8 c$ ]
还有很多，如有需要我把资料发到你邮箱里 ) b1 y0 N/ `1 C" Q
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