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发表于 2012-11-13 08:48:12
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1判断语句
% u' O) E! d5 i, y if <condition> then
5 u9 X) s2 o' j4 R& p- g1 O <statement sequence1>;: l( ^2 B' l4 G% }+ `, F, Y1 B
elseif <condition> then
% k! g+ B- j5 M L% A j' h <statement sequence2>;# Z9 Z% R. A6 D: |+ P
else # ^% F6 A* @! @& d
<statement sequence3>;
+ {) S6 I) y/ V9 J; ~ end;4 Y' s# j9 y5 D7 P% m
如果分支比较多，用：
* m3 d( ?, p; }6 `) b inspect <expression>
; ]2 ?! }# i) S8 |3 E9 w when <constant_list> then8 s* B* v- w# L' N$ @/ o' m! S! j
<statement sequence1>;
" a; I8 \; q. O when <constant_list> then6 u% }- P4 W) N& A1 A- p7 _
<statement sequence2>;
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else
/ {& F# R2 P" ^8 ~; T( D. y <statement sequence3>;
# H) Y+ L ~7 ]end;
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2循环语句- b' z4 V6 w ]5 Q4 {2 o
(1) from <statement sequence1>3 O. E" j9 V8 F, B# T0 A
until <condition> loop
8 Y$ \3 Y. M: P6 D' |$ T! A <statement sequence2>;
+ Q g% E" t* x6 h end;+ q6 W# Z, I5 c+ K1 V
(2) while <condition> loop
# ^# \5 x' C: |$ k$ c+ I$ G <statement sequence1>;8 z/ }; ?$ f, r# m
end;& H8 Y8 k# _- |0 j/ z; ~/ a6 [6 N4 P
(3) repeat
% {; D8 H: S& j- n; R% ?2 G d% d <statement sequence1>;; c/ L: ^& D& A0 ^" ^0 }
until <condition>;3 \' C, d9 g/ \6 K
(4) for <condition> to <condition> loop6 \ Y6 `& O x, e
<statement sequence1>;
3 v {0 J4 f V4 f$ Q3 Q0 ~ next;
" [9 J( e; E1 }5 _8 N3中断语句
$ Z- T8 S( M7 A# M# O8 ~ waituntil <condition> prio <integer expression>;
& n- _- U8 f6 @; R4 L! W9 E/ q& `% x1 L3 u+ i% _4 X
0 ]) A* l1 W1 H2 h# O' f3 A2 k
以上为常用的函数！
- t) H0 l \ g0 C% A还有很多，如有需要我把资料发到你邮箱里 1 P$ Q+ F9 w8 g6 E9 o K
+ x) e; t) ?2 d( L' e1 V" B5 }$ }9 s
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