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发表于 2012-11-13 08:48:12
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1判断语句
1 j0 L9 o. I6 L- u T: f% z if <condition> then9 \ F1 Y0 ]( S6 x
<statement sequence1>;
9 d6 F G( x/ j. M: t6 m/ M elseif <condition> then4 J# k& J/ V; z4 w, W2 x
<statement sequence2>;
/ m0 K% J( ~' s8 b9 C else
; ?+ W" E! h @* x/ {+ n8 \ <statement sequence3>;
- H& K/ T* _7 y# z p" `- g end;) s% b% L8 E+ _! h/ O' |2 [
如果分支比较多，用：0 K8 Y, m: [' E1 g4 G1 d! z$ Q$ z
inspect <expression>3 N0 `* x" i0 F% `
when <constant_list> then# V8 l! m; q1 `0 c, v+ z ]
<statement sequence1>;
# Y* l5 ?0 j: H0 q# Y when <constant_list> then( ]- s6 |+ z' A/ `8 z0 v" X
<statement sequence2>; m1 f6 {: |: C( i6 f; W" D" i" }
...0 x; ~- }9 {# v0 _2 q" G0 p3 N3 l
else
7 X. C& o) L) Y; Q <statement sequence3>;
4 w8 q2 N+ O8 x2 J# C( L3 [end;
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% J. u6 o$ u% p! `. J2 U; A2循环语句
) h5 i7 W2 i. J7 [2 W (1) from <statement sequence1>* x G8 P T' Y
until <condition> loop
! K" b; o5 O0 G7 @ <statement sequence2>;
; \7 U* J2 u/ h7 J end;* v9 Z; Y! B j% M# b/ ~
(2) while <condition> loop
$ k1 }$ n7 w) `& F' u) l. F; d5 R <statement sequence1>;0 e! [, E* |- O, ^/ }: V4 e
end;
. y+ L! w' h: r; H! I) C1 A6 h (3) repeat 4 u0 b; `# T2 h' m! ?
<statement sequence1>;, d! C4 z% ]9 I8 p# d
until <condition>;) _0 b/ v1 F; e
(4) for <condition> to <condition> loop& n- d, P( @$ E: L3 m5 t6 X
<statement sequence1>; o. F9 y2 @ m5 N
next;8 I" G Z! ]+ O& v& b$ C
3中断语句/ m! @4 O% J0 w
waituntil <condition> prio <integer expression>;& q; m8 U7 a& p7 e/ U) a
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' B* ~- o; p2 h4 }3 b3 Y# L3 @& E6 H5 W9 E以上为常用的函数！# _, t& `1 \/ M' K: M( @! K% o5 X2 e
还有很多，如有需要我把资料发到你邮箱里 1 M: }2 F. B9 p7 h: ?; E
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