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发表于 2012-11-13 08:48:12
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1判断语句/ _/ P1 b2 H9 O: e: J
if <condition> then
9 p) w: P) T0 E* w <statement sequence1>;' I2 v% Y. _( @2 L( Z
elseif <condition> then
3 i/ h/ J/ P7 p4 d( \& V$ t e <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
/ }' G( O& I) ~ inspect <expression>
5 `, {6 J$ I$ h0 I$ T7 d when <constant_list> then
! b5 ?1 V: d2 F- o4 F <statement sequence1>;
# u) s: I& J) A- \ when <constant_list> then
% v+ W! l6 Y: Z$ R8 }7 u <statement sequence2>;6 W; C; c* ~4 i. s+ `1 o Y
...
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<statement sequence3>;
$ w( o; z8 F5 H' Qend;
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2循环语句
5 U' P/ W9 j4 Y- Z' B* A (1) from <statement sequence1>4 r& T2 \( z+ V9 V- S8 [$ w
until <condition> loop
0 f. c9 o9 ]0 l/ }" I8 W <statement sequence2>;
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(2) while <condition> loop: I2 G+ N! ^) c7 z6 g
<statement sequence1>;
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(3) repeat $ Q* O+ P! E$ R* _
<statement sequence1>;) i# L" Y5 _" n6 O5 Z
until <condition>;, B: s# _3 Q9 B$ i
(4) for <condition> to <condition> loop9 W" v7 r, p& `& y& S- J" ?
<statement sequence1>;
/ \+ `: r9 R: u+ k8 p next;
$ i" l" ^5 }. f3 v7 J6 C0 c3中断语句7 D* d2 O1 ^7 \$ I
waituntil <condition> prio <integer expression>;
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以上为常用的函数！! F4 P$ Q, [8 ~. q7 T# e
还有很多，如有需要我把资料发到你邮箱里 ; ?& G" g" w* M& m$ N( @ A
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