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发表于 2012-11-13 08:48:12
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1判断语句 ^1 g/ w$ {! D) \& T9 R
if <condition> then! F$ x/ q! U0 O5 X
<statement sequence1>;
4 V k6 P# F$ Y6 e; R3 C* } elseif <condition> then
8 r% g1 t0 Q+ ?. o9 u0 n# j <statement sequence2>;; k; q' z% [; r" f* {$ H! I
else
& ?+ S5 V: u1 \2 F <statement sequence3>;% P- @: a& ~- }. L7 w9 q
end;' `2 X: l# o, w3 p9 ^5 x
如果分支比较多，用：8 Z0 F, b% u6 z* M' e: k
inspect <expression>% |3 q9 H: y) G2 d4 B& @' K/ m% S- t; f
when <constant_list> then
^* L- K4 M; }3 P# H7 x <statement sequence1>;
+ C9 R G/ x0 U when <constant_list> then/ Q* ~* I4 [! t' h
<statement sequence2>;
/ ]% i$ Q$ L3 ~+ u9 n+ w ]4 A ...
) I* K" i8 D# n: j$ P+ q$ Y else
4 d! x" I H- `& g8 n( G <statement sequence3>;
: R1 G& c1 _ `8 C1 i# s1 E( zend;
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% a$ g3 u1 x7 p$ l2循环语句
( I* m- w5 L5 c' t, B$ x (1) from <statement sequence1>) g4 `7 i8 V5 a! ?7 E8 s
until <condition> loop. T; f( o) E" d0 `7 y
<statement sequence2>;4 b8 b; J+ [) X" c+ o9 I1 d$ \( B6 K- M
end;
6 d+ `) W3 d- G. B) U3 J* [2 ^3 O (2) while <condition> loop
1 i1 |+ W$ U1 U: g" e' l <statement sequence1>;
1 l& n5 r! P6 J2 h" G- Y end;
0 I8 B0 Z7 p9 V% ]0 a/ ] (3) repeat . w# J7 B% r* X# Y& f9 {
<statement sequence1>;
; i3 e& V' Q; E+ L" f4 ]& m until <condition>;
" O; W' H2 V" ^3 d! |" w) ] (4) for <condition> to <condition> loop& [, A9 J0 v2 H# m" {0 J2 q9 y( R
<statement sequence1>;
& f0 _8 O: W) }$ Z next;2 z/ ?7 I* q8 }: r
3中断语句+ R" A9 a, P2 O+ H `
waituntil <condition> prio <integer expression>;
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$ R2 g3 f5 \" o7 ]以上为常用的函数！
, F& q w( P% l+ I' W还有很多，如有需要我把资料发到你邮箱里 s% g2 o6 {3 R5 M) u
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