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发表于 2012-11-13 08:48:12
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1判断语句" h$ j# b" M' G0 J: S
if <condition> then3 U0 I9 D9 H& @1 i
<statement sequence1>;
, z: ~' V! F. x! q& o elseif <condition> then% R1 [- V' L- U! ^* X
<statement sequence2>;4 K m7 c" |7 q0 f. u6 w
else 8 F. e. e3 W' y" K
<statement sequence3>;9 e7 b2 T z: \! e! P: v8 h& ]2 h
end;1 A$ G- y2 O, }2 ?4 Q+ s3 W+ V
如果分支比较多，用：
) h0 V- ^9 X( d$ |& u1 H8 O inspect <expression>
: d! ?0 g0 e, u4 E when <constant_list> then
2 N% v2 G" K$ g3 Z% v <statement sequence1>;
. _! E. v: {5 S) T: t; c! U: L! k when <constant_list> then# T! V8 x0 w4 F8 L
<statement sequence2>;2 W0 d% q/ e1 r
...5 g) k. m8 k1 Q
else
* _" F& y' J8 g: g; g8 t9 S0 h2 { <statement sequence3>;" ^% F4 A9 g/ N8 a6 k* R8 c
end;
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V: J! y' G) O: A0 s3 ^2循环语句
, r3 g V o& ]& o+ S (1) from <statement sequence1>
3 ~7 v# ]& z1 X# B until <condition> loop1 [; B( v8 w# ?6 D' y
<statement sequence2>;0 {9 @: I3 R* Y& T
end;) U- ` B7 p4 c. P8 p1 K1 V
(2) while <condition> loop1 x# i3 a- q# ?
<statement sequence1>;" V/ a* c8 h+ u4 l
end;
! [: R# k3 y& D, p (3) repeat & J4 D; D- k/ P* Q5 ]6 M
<statement sequence1>;
5 Y! N( Q! a& \: _ until <condition>;7 n# Z5 h/ Q$ g9 ?4 a, U6 @ ]
(4) for <condition> to <condition> loop
( F( U! U( ^+ v# W8 b/ C <statement sequence1>;
: n7 ^! R- n$ H/ u$ U2 D1 G0 L. w next;
- k. w3 m( |' f9 n0 Y' C3中断语句
7 v; ^) e$ v- P3 z8 o5 ^0 V waituntil <condition> prio <integer expression>;
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以上为常用的函数！
/ m E2 s+ {: C6 o: |5 y5 x还有很多，如有需要我把资料发到你邮箱里
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