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发表于 2012-11-13 08:48:12
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1判断语句
$ l, _6 H' d% `0 R if <condition> then
% i& L* f5 ^5 [! S3 h <statement sequence1>;
5 e; V. b3 p9 g elseif <condition> then! v. K) }2 @8 O m
<statement sequence2>;6 T) q1 \+ ~7 O
else
& p* D0 p) C/ C5 Y/ |2 H' R <statement sequence3>;5 ^/ a; z) ?# M
end;6 @! A1 n/ i* a7 s' K
如果分支比较多，用：
" n! @' l. D' A6 c' N6 z; M inspect <expression>. j$ O7 _ Q6 H9 W7 `9 C
when <constant_list> then
" P& G; e b( J <statement sequence1>;& l0 R' q. M+ _ u
when <constant_list> then; X8 A: S( Q$ X
<statement sequence2>;. F! X: h' P! T8 w j
...
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<statement sequence3>; A+ c8 A0 }: u+ b; A
end;
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2循环语句7 @2 L! a4 y3 y1 k$ o/ q+ q5 d7 d: g$ K
(1) from <statement sequence1> i% I( h& T9 P; Z
until <condition> loop
+ G! {8 q8 B* P/ P) k# z <statement sequence2>;
; K" n# Q# d2 r& w" y end;0 s: {0 u8 o, ?' F
(2) while <condition> loop' N$ p3 S/ T: m- I5 b
<statement sequence1>;
9 o" k+ d. U2 s y7 Z end;, w F& g2 W' ]3 d( t
(3) repeat 0 D+ c) S d' V. s. q$ P
<statement sequence1>;' |( U4 v, @% s! [; V \1 L7 a
until <condition>;
) F6 E% l4 V0 b* E+ O' B) | (4) for <condition> to <condition> loop
8 }# T5 b7 T2 H' Y <statement sequence1>;
( p: T, b9 l0 C next;
8 z9 O, a w' z; f3中断语句
( {( i" ~" A6 o, Z8 k waituntil <condition> prio <integer expression>;) X/ x5 q' C6 m- J
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以上为常用的函数！
+ m( B% b# B1 D# f/ g G3 U还有很多，如有需要我把资料发到你邮箱里
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