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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
5 n# K% B7 ]# [0 C# d if <condition> then
! N" o0 a& U, Q) L/ o U( H <statement sequence1>;
3 `$ V5 k4 k# q) i) i3 i elseif <condition> then$ r ?+ l6 S& N2 N; A7 @
<statement sequence2>;
8 F1 f4 h) b4 S1 O& L else
1 |1 v2 t* i; H8 M5 i <statement sequence3>;
: O7 v: e7 P' I$ W end;- S7 ^: M. I- S4 C8 y, }& Y
如果分支比较多，用：/ d: s0 I1 s1 Y) e
inspect <expression> W" x1 a6 T5 p7 s
when <constant_list> then2 w8 E" C& P" E, P+ h
<statement sequence1>;% y; \2 Y0 z+ [- N
when <constant_list> then
9 O0 K* D4 }1 v+ K' o2 ` <statement sequence2>;
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else
6 p8 g+ c, F$ l! N# ~ <statement sequence3>;
$ C% Y8 u" b. i7 Z# D" Iend;; A; V% U! T6 v8 I
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2循环语句
5 T5 C9 X1 P1 V$ w" O7 ^2 V (1) from <statement sequence1>3 h y2 z- j' v% w) Z
until <condition> loop
3 M8 c& }, ^0 [ <statement sequence2>;. Q+ Q. a' ]3 P: W/ Y% W9 F) o! F5 `
end;
* D- L5 F0 O$ j# @ (2) while <condition> loop
& h7 J9 {" `- F- \' g <statement sequence1>;) G7 d) e% i) o8 E2 c- H
end;
0 W* K1 x1 `+ g7 b% g% w (3) repeat
* e3 ]3 I' a; v# `6 ]& y7 s& t <statement sequence1>;
4 y- ]3 K; a* m& O: i9 Y until <condition>;
* A2 J$ q5 \4 G! Y7 i( f7 t (4) for <condition> to <condition> loop
6 x4 f* W8 F/ ?3 Z- j <statement sequence1>;
$ W) g9 U P: z2 f7 @! \! Q next;
1 l. s8 I) z* `6 X$ t3中断语句
- Z& P% N* Y+ L7 F Q waituntil <condition> prio <integer expression>;
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以上为常用的函数！9 P) q$ ^1 h8 B1 f8 W
还有很多，如有需要我把资料发到你邮箱里
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