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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 }3 a$ }2 ~% Q( O$ A if <condition> then1 j- Z9 Y9 M8 M |9 X+ n* x. N
<statement sequence1>;5 L' {4 x$ o3 E$ |8 _7 Z
elseif <condition> then" u5 Q4 \/ e; j' P5 e
<statement sequence2>;
% `6 L* o4 @/ c' @7 x1 @: p* h7 `& b, d else
# x: [# T9 v" H$ l: j3 I3 v <statement sequence3>;6 t# c$ H/ s. f
end;
7 X6 W& G9 X3 }: u如果分支比较多,用:
) L6 v) i3 E7 B7 f5 i& T inspect <expression>1 R0 H" x, d0 @! A8 \& Z1 X
when <constant_list> then
, K; d2 A, X+ H i7 \1 x <statement sequence1>;
. L: t' _: @; M" g4 B when <constant_list> then
$ ]+ {0 |9 e& c* _4 u+ a <statement sequence2>;
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else/ q5 R1 t2 y( R5 i9 `% ^
<statement sequence3>;8 C; Y; b* {0 d, Z, d6 V
end;
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( @6 e2 Q3 X+ U. e; x2循环语句
7 q2 s1 W) @ {1 V- ? (1) from <statement sequence1>9 c' ]- i% Q& i+ d* A) a
until <condition> loop
. y$ _1 p0 E; T& p# ] <statement sequence2>;1 x4 f J& w% F. b7 ~5 @
end;: T6 v9 ~6 \" z" v6 v+ e
(2) while <condition> loop1 p8 T+ K- N+ A' s6 }$ h
<statement sequence1>;
9 n$ p% j u: M' N n' P8 U/ B end;1 l+ z0 O# R+ y# J
(3) repeat
8 t3 k$ i* M" k <statement sequence1>;
+ f4 }1 @' l3 u6 m& c until <condition>;
+ Z7 U( S& c! j( Q# b* [' p (4) for <condition> to <condition> loop
7 ~2 [* w5 F8 s; q* {/ G& C; f <statement sequence1>;0 o6 W: x: O% _3 s
next;) ~( ]; j% R g
3中断语句4 { {3 I$ I. v) J5 u" t
waituntil <condition> prio <integer expression>;
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+ C9 ` K5 V8 }) }# l6 m0 ^% v9 @+ h r3 J# u
以上为常用的函数!% u+ A3 f( H; C, H7 D5 k; J
还有很多,如有需要我把资料发到你邮箱里
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