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发表于 2012-11-13 08:48:12
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1判断语句
' B' U+ m8 a+ O! T if <condition> then
/ k- I' v3 W$ c! X" g <statement sequence1>;
3 ?, k$ q3 Z2 H: c! `6 A elseif <condition> then
2 m+ K& ~; i+ p" O <statement sequence2>;
2 {/ \5 A$ ~& b& M else
9 F; P ]1 V% }& F <statement sequence3>;
$ y( |. t" g2 B2 R end;
3 Q# H9 a& z/ T9 j7 \' ~8 s% y& g/ m7 b如果分支比较多，用：! \9 K5 R$ B' N/ ]& q
inspect <expression>/ d J8 @! d) P$ [* a! U
when <constant_list> then* l, ?6 m8 z$ b" P
<statement sequence1>;
9 g# j7 v6 C& v5 I; {" b when <constant_list> then$ R+ d% Q& ?/ ~# h# ]8 X
<statement sequence2>;3 k7 z" w* C! s' z h3 ]
...
" }. x- f. z) a, a5 ^ else# m) t7 A4 H: _- `
<statement sequence3>;
5 b8 B1 ?! e6 q/ x2 Y0 a, s4 _/ dend;
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- h$ f- a, h1 n; B* q5 r2循环语句
5 l) W( i. }% N& h( q" [& g: A& ? (1) from <statement sequence1>7 B3 Q* g% |% W$ l' t. E! F4 d
until <condition> loop
( I9 L! S- q5 d9 W/ U <statement sequence2>;
' ^8 R6 Q8 O, m" v+ g [ end;1 k1 s/ w [8 l* [
(2) while <condition> loop
5 X9 V) {3 ]* u7 P" t! q <statement sequence1>;
( W$ x' r+ F+ {- z$ A end;8 B& S4 I R+ N- G0 w; Z$ r3 e
(3) repeat $ p8 T" \! z5 G3 l: ?
<statement sequence1>;
0 @# e. N) U+ e2 ]7 D until <condition>;
" _$ ?8 D& J. Q (4) for <condition> to <condition> loop
9 Y% {1 u6 T+ j; f7 | <statement sequence1>;
9 @9 l1 v3 ?7 B, d, [4 Q4 \$ V6 N next;
) C$ h& M% X8 X4 Q' L3中断语句
6 p) ]8 _/ K5 E6 u waituntil <condition> prio <integer expression>;; b+ k3 M: G& e% B& |
3 A4 j& ^+ {! v `, c/ k
! ]& r' R* q% n* a+ o以上为常用的函数！% z: b/ W6 J. d
还有很多，如有需要我把资料发到你邮箱里 8 }/ t4 e7 Q' \2 o6 H) |
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