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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
0 g" l0 g4 ^7 V& Q if <condition> then# @8 Y: B, P/ ?, l5 K C
<statement sequence1>;
: |% i" r+ {+ b( w# u* j5 W: E elseif <condition> then
0 `/ O* @/ A& B <statement sequence2>;
4 f1 ? W; b% A else $ p+ j- U, B; D) ]7 Y0 Z% ^
<statement sequence3>;" h) q- C1 g/ Z
end;9 }" }; P4 ?, {8 f7 L! y' U
如果分支比较多，用：: Z5 g2 h# E+ [; @: h
inspect <expression>
8 l( |* x ~ w2 U6 b% d4 C when <constant_list> then/ t" C: i' w, X+ d
<statement sequence1>;
3 J8 s+ X. s& j when <constant_list> then% g+ b8 S, j$ J# r5 Z
<statement sequence2>; I$ n' }/ {) n! N& _
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else+ c5 H5 G, P. V0 X/ S
<statement sequence3>;
; E0 }3 ?3 q: m, d4 I$ eend;% i/ `: J# G s$ y* d
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2循环语句
6 L2 e2 `" c7 i2 l3 A" s (1) from <statement sequence1>5 B5 w$ W% b2 @1 {9 b
until <condition> loop9 {# B. T3 L9 o m" t
<statement sequence2>;. g0 U# |9 Y& B
end;
7 `! {* P6 S9 Z+ M) f# v# z (2) while <condition> loop2 D( b9 m3 }) X$ \3 K* `4 V% P
<statement sequence1>;
- s7 j# e, ?2 h+ i& @% ~% ?( w O end;
6 R+ @5 m6 @; a. e* ^" n- l; z- m (3) repeat 0 Q( i1 `+ V) b' c! Q! S# f
<statement sequence1>;
7 X5 V1 U+ Z+ j W% P until <condition>;
. \( y2 k2 i' {6 a, k6 \4 C9 C9 [ (4) for <condition> to <condition> loop
- c6 n" p, ~! n7 A. r) \ <statement sequence1>;
& e) I/ N$ W; q4 V0 n next;% Q# |. {/ {4 D% @+ S) t8 x
3中断语句
" Y3 T8 v! {; g- T0 r: S& I waituntil <condition> prio <integer expression>;
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0 ~1 E- w7 T7 T( S9 H' a. h6 p( l以上为常用的函数！1 g" E) l, Y# C! p, n
还有很多，如有需要我把资料发到你邮箱里
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