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发表于 2012-11-13 08:48:12
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1判断语句9 y' y8 Q6 s: r' _- z
if <condition> then* q* K' U! m. n0 M* l. W1 T* ]
<statement sequence1>;
9 x9 Y# I% D8 m elseif <condition> then
, r' `' r; i( Z: Q <statement sequence2>;
; z, U; I3 R2 O7 Q: d else
4 C5 I; ^5 ~+ d* ^. i <statement sequence3>;* B* q! W+ [3 j' p6 e
end;& j7 {& @7 A4 v! t1 ?
如果分支比较多,用:( h- k6 Q: F0 ]4 k0 A) z- y9 @
inspect <expression>+ J% S; A$ F5 g$ R
when <constant_list> then- X/ J" {! d: Z
<statement sequence1>;# T9 o; s1 w# X$ Y- x9 l/ D
when <constant_list> then
, V8 J# g* f) K0 P# D5 b. Q3 O/ i: f <statement sequence2>; m+ ^3 X6 M( {! o9 |9 z" U& F
...
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<statement sequence3>;
# {5 G2 v3 ~5 l& Q# u1 e. m0 Eend;& ~ k% b8 k% c5 [9 S4 a6 G
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2循环语句
8 }& ~$ U# h( s: I+ H (1) from <statement sequence1>
. p- Z3 e( r& G# V* I" r+ [ until <condition> loop- x$ C/ |* }( n5 P+ j6 r4 }* j
<statement sequence2>;) u* X& T. ]! ~8 t
end;
7 t* r1 p1 S1 R3 j! t! g (2) while <condition> loop
. Q d* U8 q0 R! n# f <statement sequence1>;
+ c$ h2 b% T3 N1 V3 j9 W end;
3 F/ | s- C& I: C" J5 S. ? (3) repeat
0 }+ L$ u+ Z& q7 } <statement sequence1>;0 F$ w; @' F _6 J3 s
until <condition>;
1 C# d2 H- n6 S- a8 I (4) for <condition> to <condition> loop
6 \/ a$ x' d2 v1 z! |+ w+ | <statement sequence1>;" x3 }3 E8 C8 x
next;
& W2 c Q- Y5 E1 n" M/ M8 k, \3中断语句
4 p- g0 ^+ M) E8 \ waituntil <condition> prio <integer expression>;* v% Y& n3 S m' ]3 |" T
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+ M0 S# O3 z# j2 c+ ^) K2 @9 _以上为常用的函数!+ S# m' E( ` W8 |' W8 I
还有很多,如有需要我把资料发到你邮箱里
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