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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
! _/ Q' N9 Q; K if <condition> then
& K& a( J2 l* k5 @; i <statement sequence1>;4 K/ n, R' {2 N6 t. e
elseif <condition> then9 b: @: r0 k6 x3 w
<statement sequence2>;3 e: l* n; @, l+ j; d
else
" R( ~9 V9 F' W$ u2 Q5 r+ m <statement sequence3>;: y0 r9 M d: f2 R; A& v# n
end;7 {. p5 @9 A1 U5 y4 i) f
如果分支比较多，用：) u2 ^; k: {! u$ H" B7 n
inspect <expression>( S2 w5 S. B$ f% d
when <constant_list> then
A. E/ e3 [' J2 N <statement sequence1>;
/ e4 Y8 I% U6 O3 q5 y when <constant_list> then8 f5 e5 t( Q% y* [, }6 y: U
<statement sequence2>;
" x u( O3 T& ]" o .../ m: \+ k- K; _% y& i5 U# P5 N G
else, \1 \+ c8 v- R- u6 U
<statement sequence3>;
3 `2 E2 e. f k2 e& @" H, Fend;
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2循环语句
5 \+ S. g0 O% g$ d (1) from <statement sequence1>
! ]1 q* V9 u- t! v* h) i! S( j until <condition> loop
* D, s1 n7 V. D3 A4 ~ <statement sequence2>; e2 Z7 S& ]* C( |; v
end;" Z/ F; x; \( E
(2) while <condition> loop
7 S3 A" d: h _; f" G% ~2 u& j- Z <statement sequence1>;
o2 o5 I* j8 H: k' i end;
! Y* t6 x, z Q: K0 f' d (3) repeat 2 g( `+ v2 `4 [' Z
<statement sequence1>;/ f. w0 N3 H% i! s7 l
until <condition>;; K; D1 d& C/ _# C! |
(4) for <condition> to <condition> loop
* Q& c& D' [# o* J6 j <statement sequence1>;
' A- X; |0 G" e4 w' h/ V7 u" h next;* t. ? d* j' \
3中断语句
( G4 n7 s7 _% f, @% h. R waituntil <condition> prio <integer expression>;
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以上为常用的函数！
- E* T$ W8 Z1 C; A, s- P: l# B还有很多，如有需要我把资料发到你邮箱里 $ O2 ~& k( \0 V# e
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