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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
% ?7 Y6 n8 P$ [$ } i1 ]6 ~& Q if <condition> then
* p6 X Y0 G6 p# `2 S5 L/ a0 ^ <statement sequence1>;
- R! V. O9 ?% s; g+ E' B+ l4 g elseif <condition> then' f/ ?& q4 C$ C& o1 ^4 y* f1 r
<statement sequence2>;
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<statement sequence3>;7 |: v0 P, t: Q! Z5 c( H
end;
$ y x; A# h9 R& S! A+ {如果分支比较多,用:, C, Z: _7 a7 ~: G! K- O
inspect <expression>' v) r5 c- m, X7 ^" [0 Q$ n
when <constant_list> then
: W7 O" ?: O/ I <statement sequence1>;
1 R% ]* w9 }3 B! n8 } when <constant_list> then
+ q# O+ M; I2 H6 S <statement sequence2>;( g+ B0 I1 K& p! V2 O3 O
...
! J, s- }7 Q6 V: J. j( v& s1 r* Y else
# W' f* T+ E0 n+ ^ <statement sequence3>;* o! ^& U0 m, R( K o
end;' y" I7 j3 ]% }1 Z+ ]
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2循环语句
; F, {( s! L% Z5 h, w (1) from <statement sequence1>
6 n6 U$ E; z4 B until <condition> loop
; G5 p/ [: M& g0 D <statement sequence2>;
) j2 i' H, F7 @0 D; V( O end;1 Y7 w! a" Q$ g( N* ]% I4 w7 f6 }
(2) while <condition> loop
. z1 r+ K+ F6 S" j A: Z& O <statement sequence1>;
, O$ D; C- |. o# Z8 w; D end;9 ^# f% _' M2 c# M1 e! Q5 p
(3) repeat
1 E/ |2 C. @$ B5 N <statement sequence1>;
/ Z d# l2 w6 z4 W/ Q' o$ } until <condition>;0 b* R: w. A: V5 b
(4) for <condition> to <condition> loop2 G* w0 k7 Q5 l. h8 _$ G8 Z
<statement sequence1>;& H& j: ?' n: o
next;; ~, @7 I9 y( l3 `3 o
3中断语句$ r2 b* g( i6 \% D& Y; k5 I% X/ w
waituntil <condition> prio <integer expression>;
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' Y6 `/ r1 _* K! q7 q以上为常用的函数!
6 _! y- x( O, o R( ]* X+ r还有很多,如有需要我把资料发到你邮箱里 / F1 {1 a# [( P0 b' v
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