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发表于 2012-11-13 08:48:12
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1判断语句* R7 J& a; B, w. G3 G: `- p9 ~
if <condition> then
3 S' T# N: I3 M4 M/ U {; } <statement sequence1>;2 ^1 U2 Q" }4 G% L* E
elseif <condition> then6 n5 V9 R7 g9 q- V
<statement sequence2>;
3 i1 `$ C1 N! V. W9 Q0 u* S# s, l else
* p$ T2 p+ W$ B; { <statement sequence3>;. O0 Z! z x6 O m* u
end;3 c, S# q* g$ x/ o* ^4 x
如果分支比较多，用：
- d$ m0 c" @/ ^% O0 j inspect <expression>
+ ~/ D# B5 h( m' U when <constant_list> then
+ D9 K2 Q6 a, i& i4 w& B <statement sequence1>;& P" f6 A- v7 ]3 E
when <constant_list> then
2 x" p8 q2 F$ e, ]% N <statement sequence2>;
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else
6 ~0 S% c, }; _8 L. E$ P! B <statement sequence3>;
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2循环语句* @/ [2 U) g: u: G
(1) from <statement sequence1>1 }& W0 |3 F. X$ B0 F2 S3 [% R
until <condition> loop$ M- p% C2 A/ S& u: y2 r+ ?/ V
<statement sequence2>;
6 o ]" I9 E$ W8 y end;
: E' Y" ?8 Q( w9 w) g5 P' o1 g! k (2) while <condition> loop6 ?8 P% | m4 q1 b
<statement sequence1>;
/ o/ }( n T: t% b# I' r end;) f' B- o' i; n) w" G
(3) repeat
7 t9 l, }9 G+ U6 K4 d, M1 D <statement sequence1>;$ ?' m, M( b- G1 x; C4 u: ?
until <condition>;6 J9 l5 P6 z" T# f
(4) for <condition> to <condition> loop
: X& p* U; A, n- A <statement sequence1>;
4 S6 p% o G o6 s. t next;! K _& k5 I! R1 Z; }7 Y; S
3中断语句4 Z1 Z" C; E& L- I( O
waituntil <condition> prio <integer expression>;
y& L# L) |1 \$ Z: ?
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以上为常用的函数！
+ l- L3 Z0 _5 b* V( `% S3 T还有很多，如有需要我把资料发到你邮箱里 " E5 h+ O5 U* w! J( Z
# \$ ?2 H. T5 _- t( s j
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