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发表于 2012-11-13 08:48:12
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1判断语句& Z# {7 t; H, o# d! w- z: \; l2 t2 z. m
if <condition> then; u2 O+ z+ r# S2 j9 S# N% J
<statement sequence1>;- N# b6 F: c" X5 I y0 Z
elseif <condition> then
1 A! x! v. g7 S5 c <statement sequence2>;% P( d( o/ a! J3 t x8 w
else
/ v9 z. u4 y" H/ U <statement sequence3>;) o! h0 l, q) r2 ?
end;
6 y2 {, t" B# d) n9 c如果分支比较多，用：
/ h9 Y/ R" X7 n5 E6 e# i inspect <expression>
0 |9 j; @3 S! w when <constant_list> then7 _6 M! Q# t& C
<statement sequence1>;" d* z2 E* r% r
when <constant_list> then. U5 K( T& U& S$ Y% b7 Q3 C
<statement sequence2>;
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else
8 i0 l$ n7 l1 m5 L' z" j, U <statement sequence3>;
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|: U" T) X1 v. ^! r+ ^5 b/ L2循环语句; L8 a1 I1 F9 h3 r( U" m: J5 @
(1) from <statement sequence1>, b2 H+ x7 C" [ b- c
until <condition> loop( Q: A8 |5 ?; R8 R1 {
<statement sequence2>;
5 m: d) Q% {" W+ s& C end;
( t$ i8 s. o+ ? (2) while <condition> loop
) y# t( F7 N/ |0 s <statement sequence1>;3 o) f( }# D7 h9 A( N E9 j
end;7 m+ s3 O0 u& X6 ^7 b% x
(3) repeat ) B7 j8 Q u9 ?6 k0 D
<statement sequence1>;: f6 h3 o' J7 i% I6 G
until <condition>;" l A3 S& A$ i8 X7 X( `9 {
(4) for <condition> to <condition> loop. A9 ?/ \5 |6 k9 k2 D
<statement sequence1>;
6 a/ M6 N. d- ~9 {# M7 M! a* }# f next;- M' T3 N7 f) r2 `6 F
3中断语句2 c$ m" i8 F0 F
waituntil <condition> prio <integer expression>;
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) ]9 b) j; R9 H3 Q以上为常用的函数！
2 }7 v" s9 ~ [3 }9 n M还有很多，如有需要我把资料发到你邮箱里
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