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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 m% G9 t2 }3 H' r- f, z if <condition> then3 P- _+ y. {3 g: U; v
<statement sequence1>;
. p. o- L# f8 g0 B! F elseif <condition> then
7 ?$ O$ E+ K7 C, N <statement sequence2>;
4 q% E. N6 ?% S else
4 e G' x6 _: R4 h <statement sequence3>; d% g! \, Y& k- h1 P
end;! F& E. N6 `) C# Z5 A' ^# v
如果分支比较多，用：. }& m4 O% K- z: D
inspect <expression>
: p3 Q. Y+ M9 ^4 c) G when <constant_list> then+ X, i5 a! S B; J j
<statement sequence1>;
0 K5 v5 O+ ~+ ^ when <constant_list> then
. g9 v( ^, V% s9 j2 \ r7 S# u <statement sequence2>;+ Z5 C! ]: q% m- T6 [& X
...9 ^; ?3 M; Z( b8 A6 q+ `+ d
else
* L! Y0 B" o2 K2 n7 \ ] <statement sequence3>;' z+ A8 y& B I7 O1 Y8 e
end;: i2 e; p$ r1 W. x6 i2 q$ {
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2循环语句
5 _+ b7 P0 j8 Z* s! v (1) from <statement sequence1>+ v1 e2 O4 }, ]2 K) n
until <condition> loop
/ i P) y! D3 s2 Y$ s <statement sequence2>;
' G; F2 \) }8 Q& r end;
" s1 X& B2 U; D% i (2) while <condition> loop
3 J* ]4 V2 P% l8 D H2 t8 v <statement sequence1>;# H$ @0 S' `6 `. d( k0 w6 Y
end;
" C8 p- q( @& p9 g# \/ h (3) repeat
( m8 F' u3 o! f! z, N <statement sequence1>;
4 H2 i% W, j& X* W5 x) s until <condition>;" m: d) [6 w8 J: U
(4) for <condition> to <condition> loop$ M' I8 L2 M: {) @, ?& V, v
<statement sequence1>;& s$ s, y( |' L
next;' F1 S, k5 r* x1 B
3中断语句& t Z/ j+ h8 \. N4 d7 y7 F
waituntil <condition> prio <integer expression>;
. H+ h' h% z( v, x) y" x% g2 n5 P! K9 A0 ^ \
9 J9 q( |: r5 ]7 t1 g以上为常用的函数！
9 X2 } l4 ^$ }* |0 [$ r: c还有很多，如有需要我把资料发到你邮箱里
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