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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
$ w" j% Z( r z `; ~2 ` if <condition> then
B& W E0 ?& r" R T! ~ <statement sequence1>;* f H' ?# G7 c* U6 O
elseif <condition> then
0 ~9 a! ~# Z1 ~5 {0 V) V9 m9 } <statement sequence2>;- K2 _$ f5 M) w3 R# |6 U9 @& D- a( V
else
3 ~; _- D) T, q7 L2 d7 C <statement sequence3>;! X* u9 G# y( n3 \1 S
end;, E; n+ `2 w. S5 H. _4 H7 a" r' P
如果分支比较多，用：
+ i6 r# d! O% [3 s" w9 N6 X inspect <expression>. E( z/ @8 Y0 \/ J$ U4 _
when <constant_list> then
3 r7 h" r/ e( H6 z: u2 v9 _3 y <statement sequence1>;; [; a; ^. Z. f/ @% i1 U
when <constant_list> then3 S$ {/ l, Y0 s) r/ `
<statement sequence2>;
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else# `9 r1 x- S% j2 {
<statement sequence3>;5 L6 S) Q/ _& w, `+ I
end;
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2循环语句( t6 A4 U& r) B8 }3 z" A2 ~" W
(1) from <statement sequence1>
. J5 V& o1 E, |) O s2 u until <condition> loop
$ g: L$ S z; L- N <statement sequence2>;" B2 n5 ^: J) s; \4 G F, [' C
end;( O9 Y- B( ~8 y4 [2 E
(2) while <condition> loop. o* A; L: a$ t x N- _+ e0 D, U% W
<statement sequence1>;" u; Z* U# ?# A% ]
end;6 U7 L6 ^8 x0 O
(3) repeat ; g& s' z6 C. d, g0 F8 ~
<statement sequence1>;
! L; o( Y; [* }; j' ~8 C6 C until <condition>;
5 g) f3 w. C4 J (4) for <condition> to <condition> loop' w; k+ n& I* e+ n l; Z* J
<statement sequence1>;9 f `, F h# i' s% _: A2 M2 w
next;1 f$ ?$ K% D2 R4 o6 V4 H; U
3中断语句9 T; a- q7 w' K- z$ d) e# S5 f* B
waituntil <condition> prio <integer expression>;; w! r+ c/ l, a2 A
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3 X: ], m) n5 {# `9 ^以上为常用的函数！
9 A4 V: O2 m6 v还有很多，如有需要我把资料发到你邮箱里 & }* r/ Q% U) D* E
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