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发表于 2012-11-13 08:48:12
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1判断语句3 q6 [9 S; a. S& r! _9 d, i/ j
if <condition> then
8 Y _/ h8 A9 | C; O" _/ v; J <statement sequence1>;9 {! U' L1 u0 g
elseif <condition> then P! U. d z: D
<statement sequence2>;
* ?6 F2 m) W6 k$ S9 U/ F else
$ Q5 m" _! [. o8 \% t+ r: a, x' _4 G <statement sequence3>;
7 x2 X3 ?" l- {% L$ C end;
+ ^ g) q* \* d4 X" r) B0 _如果分支比较多，用：
) a, b2 x& z" |; C0 G; y# p$ D inspect <expression>
9 K5 ?6 B" ^# |$ Q when <constant_list> then
* L& e1 I/ Y' W. y* D& _# C1 s* x <statement sequence1>;
1 } w, C+ r! _$ y4 H s when <constant_list> then8 A9 x9 M0 N/ |4 H& h
<statement sequence2>;& H3 p) A$ n% C* L
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else+ P) ]- X8 [+ j1 l8 i4 m# l: F( I
<statement sequence3>;; l1 D' u$ ~$ D- f4 ?/ k7 O5 B
end;& H$ l8 I3 v/ q3 O1 U2 r
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2循环语句* Q' a# s J6 h
(1) from <statement sequence1>1 Q/ C# [6 c2 R* f
until <condition> loop* x5 K) T& I0 j0 l) V0 B( h
<statement sequence2>;
2 I4 N8 |$ P9 m- }- s" } end;
, B( x* Y' k' `7 X# o& A (2) while <condition> loop) R( o# k# s: @; P4 w F/ {
<statement sequence1>;
4 ]4 d- {* z( S& A2 u end;
0 [# Y; N- m) |- O- ? (3) repeat . X$ g H- ]8 }2 m8 i8 w
<statement sequence1>;
8 S. `) ~6 U. B/ p: W& o7 y until <condition>;! g8 ?5 J% ^ ~9 @3 N+ S9 o
(4) for <condition> to <condition> loop
3 o; a3 [# a- L( q5 N <statement sequence1>;' q* |' K5 P7 r, {& @/ v6 Y7 Z
next;
& Q5 E' a' t/ \( R9 l3中断语句8 ^; d: k: }, f# n+ D
waituntil <condition> prio <integer expression>;
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) u6 i# t+ S' D6 U以上为常用的函数！/ L; R! h! F/ l4 P. }, v
还有很多，如有需要我把资料发到你邮箱里
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