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发表于 2012-11-13 08:48:12
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1判断语句
- g. m. x1 C9 w( i3 p8 j4 |0 S if <condition> then' o8 o8 B* }( u
<statement sequence1>;; u( e0 A; Z ^& ^/ |6 F
elseif <condition> then
; L% ~! }7 u( | |/ G: h8 I <statement sequence2>;
. c4 J3 s2 Y; G/ R7 @! T else
) N; E! U; r, o: S2 c% {6 k <statement sequence3>;
* m- i( _# ]/ ^6 V9 P. r/ { end;+ g: O* g; Q n" Z) }- {' G
如果分支比较多，用：
J2 Z$ A- B2 `% r( h- Z inspect <expression>
2 }! ]% V, i8 d! A$ v when <constant_list> then2 L: @ v6 @ |, s3 x4 v& v; R
<statement sequence1>;
2 U% W# j- z8 M7 u& a when <constant_list> then: }# U( }+ ` L5 T
<statement sequence2>;
' S* j# Y- L4 X) W) u) R6 j ...% d3 ?5 a' y/ |9 _- W9 G! a
else/ p J! }. K( M7 l: X! T5 h' f) t
<statement sequence3>;
- l& L! I7 m, w9 h$ ]7 w6 bend;
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% l% ~1 m. ] @2 K( b2循环语句 _7 c+ W) ? h/ G( H
(1) from <statement sequence1>, X+ R/ u5 m) b1 v6 f* ^. {
until <condition> loop
! p) p, h2 _6 h6 o+ @& R: g! A <statement sequence2>;
2 l7 H: V C: h3 B end;
, a+ E" r( @7 x& F# C+ x (2) while <condition> loop
9 P1 b2 R L0 i7 B+ ^! ~) [ <statement sequence1>;% o2 {- g' W- h
end;5 Q& z+ j6 g8 {2 C) o
(3) repeat
2 n+ `5 i( D3 x% k' Z" }( v <statement sequence1>;: u+ }) [, S( g/ ]1 ^7 i; _
until <condition>;- S0 ?# ?2 K% l5 |, E
(4) for <condition> to <condition> loop
& A; C3 B. U( c, C. a, X* g# a <statement sequence1>;
- G' ?% r+ E! P$ w! Y next;9 d; U9 U! C3 [- o
3中断语句
& R4 b& _8 m S/ i8 Q& G8 S waituntil <condition> prio <integer expression>;7 n! v8 [5 j& g
/ u# W9 M2 t8 z) a, j# s
! f r9 z: t k6 J' \6 [! @- `以上为常用的函数！
7 _/ H" A" I& p4 Z. |: n$ c还有很多，如有需要我把资料发到你邮箱里
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