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发表于 2012-11-13 08:48:12
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1判断语句
# Z3 w! N( y6 @+ h. b5 [& Q: \ if <condition> then
, r0 |% M! y+ N2 C5 V) l <statement sequence1>;# U5 E# j+ v1 B2 H; p- n( K
elseif <condition> then
8 R- @: N* ^6 Q6 l+ U. z3 R <statement sequence2>;
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<statement sequence3>;& E& {- ~/ F! H9 N0 k9 i
end;
1 k' I$ ? |1 Z如果分支比较多，用：
* }% H$ o8 r P1 C5 R inspect <expression>- u. n# _, m( ~, P$ C6 j( X9 l
when <constant_list> then
8 U! Z" F" s3 \ <statement sequence1>;
" E+ W3 y- e# R' g9 x* i+ b5 H when <constant_list> then/ c) D! n3 u1 C5 t2 u N
<statement sequence2>;7 A9 T- z7 E6 K
...
, E9 x$ g6 {) \9 c+ Z else
; [. R5 N( w7 h% C( a& G3 h5 `/ q <statement sequence3>;! F* G# P6 M/ _3 z
end;" r. ^! V( H& A l9 w
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2循环语句+ A" r" N2 d8 Q
(1) from <statement sequence1>
" S9 F! q V: Q8 y2 f until <condition> loop7 m- G+ [' {6 q6 \' u, f
<statement sequence2>;% s% l0 }$ l: e
end;; C2 o6 O$ f8 V2 i9 Y
(2) while <condition> loop
$ w6 N- U. ^# }/ v <statement sequence1>;
: B2 N+ B4 b( w end;) _1 w: Y! Z4 @* o
(3) repeat
; j* `7 K0 o1 Y <statement sequence1>;
@+ F7 [4 ?8 }( i2 y until <condition>;% b' L" |. \, ?, u& b: a, M7 y
(4) for <condition> to <condition> loop; E5 Z" F$ |8 \& @5 i
<statement sequence1>;9 K2 y3 ~7 V% Y, S
next;8 Q) d& Y. p- c& A9 p
3中断语句- I' v& {- I+ C& |" L U
waituntil <condition> prio <integer expression>;
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1 O8 g0 F& t3 G1 R/ F8 l5 a, T以上为常用的函数！
& H+ n% I b! T; e还有很多，如有需要我把资料发到你邮箱里 ; V$ O2 r& E6 [5 Y+ R( Q0 n
p) H& T4 e6 ^1 t) L s ]
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