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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 w) _& Q- u( E' K6 k if <condition> then E5 f; G3 h5 g4 T) T2 T
<statement sequence1>;( k4 ~" C/ k( I- O: {0 T
elseif <condition> then! C! P* c V, |& A7 R* n
<statement sequence2>;
/ w& Q( p. {! l& V0 w7 V else
$ Q0 `3 ^3 m6 N' k! F <statement sequence3>;
- A$ W3 N! A F! O- O end;
: }/ d) D8 _7 C5 g+ B0 T! v# d+ G如果分支比较多,用:
8 v: s- A9 O' t9 R+ X inspect <expression>
9 e2 H! r2 f5 D6 D when <constant_list> then
2 x6 J3 h: n7 Z& M+ O <statement sequence1>; b" |9 ?7 d7 b* G8 i) J. _! u9 f/ U
when <constant_list> then% z' ~& g1 l5 t8 |8 `1 C" F/ ^
<statement sequence2>;: |$ G& G* R& ?# }( w& ^
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else! @# v( \3 M4 i' H/ ?
<statement sequence3>;
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2 X3 f) J. q; s: q1 }# b2循环语句" @# m6 u% b# l8 u) Z E5 o
(1) from <statement sequence1>. U4 [8 n% Z. Z7 M5 h
until <condition> loop
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end;
. y; W# j- [0 d4 [$ `7 i; P (2) while <condition> loop" o6 s8 {7 J. ?+ n/ b- G! L' D$ N
<statement sequence1>;
' p1 R% e/ e; i. ^3 ? end;
/ R V5 ?) k* ]/ }0 ^ (3) repeat
, v5 u" Y s7 l. O <statement sequence1>;
- m9 r0 f9 K+ r; ]+ V* w; ?* ~4 F until <condition>;
, x5 @' V( C! q! |, E (4) for <condition> to <condition> loop, p6 W% u) N2 v' ]( m6 K
<statement sequence1>;- _ J: s; G1 L V1 W
next;. t& g5 \6 F0 `( }7 ^4 N' Y
3中断语句3 w1 C! |" c2 P
waituntil <condition> prio <integer expression>;
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; B: P5 h2 F- l以上为常用的函数!) C3 ?0 }- O9 g+ g/ F6 V( r
还有很多,如有需要我把资料发到你邮箱里
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