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发表于 2012-11-13 08:48:12
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1判断语句3 c/ q2 u: y' Q
if <condition> then1 ]& p/ R' }. h; i! t
<statement sequence1>;
8 ^- N5 B% \- g4 ? elseif <condition> then; j! D; r& N7 Z# U( w% G7 o
<statement sequence2>;
: V n% k# z1 B* ]$ ^5 n. d. l else + B9 p3 S9 \# M% ?2 b+ A" }4 E( ?
<statement sequence3>;8 t7 z6 T* T+ {
end;9 h, v; w/ ]5 o D0 I+ I) S
如果分支比较多，用：
0 _% O6 k* u# j* r# E inspect <expression>
5 E* y: ?% T; e+ _- X4 k when <constant_list> then
8 U! r& H2 V5 x! C# X5 K [! s <statement sequence1>;/ \: f3 e4 ?1 e# L8 P* K. q
when <constant_list> then
- p9 X% I- K* f4 J3 F" J <statement sequence2>;6 }4 @( f4 ^; `; s7 l
...9 b- k( b4 ]+ u7 v+ r
else/ @# r8 G$ J3 d; R2 }, a$ P
<statement sequence3>;5 | G6 Y2 }9 `4 w: l( B
end;
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2循环语句& x3 f- u! m, X
(1) from <statement sequence1>/ i, a( X8 C8 B+ \3 \; @$ ?7 U9 `8 I
until <condition> loop
/ S9 z+ ^7 x7 Q* J" z! q' z <statement sequence2>;5 R& q/ l% A. A# R$ [% K
end;+ t: ^2 R& t+ d! u- a
(2) while <condition> loop
e A M6 J/ i; _1 G& m <statement sequence1>;1 ~0 m" r) b+ v7 M0 l% e
end;
$ n/ C* o$ D4 Y (3) repeat
; O+ X0 H( I8 z: l( f4 ^, X <statement sequence1>;2 C |% M% D% v3 R8 N/ `
until <condition>;
2 ?* H6 O+ i# @4 g8 h; u (4) for <condition> to <condition> loop
1 g3 O+ @( u9 q+ @: b4 |2 r <statement sequence1>;
" a* `1 S4 k5 a q% q8 Q next;' o7 c2 k! Y/ n" ]1 F
3中断语句
3 \, t+ z* U7 B9 W% s! m- @# G waituntil <condition> prio <integer expression>;, x: f' Q* A% L7 `2 S: U, l& M: `; d
# b; P: W: U& ^
$ F6 K7 M) G$ ]" T. Y4 Z以上为常用的函数！0 u9 L; R0 ], k1 R/ r8 r: X% I. Q$ a
还有很多，如有需要我把资料发到你邮箱里
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