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发表于 2012-11-13 08:48:12
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1判断语句% d" l5 ?/ i: Q0 U* I
if <condition> then
7 `2 C; J! E& u8 u- A# k& w) r7 j <statement sequence1>;
: D: _" E/ A! w5 \ elseif <condition> then
& {: X% b# O/ v/ \5 _5 G8 B <statement sequence2>;
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<statement sequence3>;
; \3 R$ A* Z% J1 W5 o+ f6 o end;
* [4 n% i, k7 ]' M v8 ~如果分支比较多,用:; w6 `8 g6 I4 T" |
inspect <expression>5 Z$ N* @& ~" ]3 E' T; `
when <constant_list> then
4 z# E8 m5 l5 _: ~3 V" z. g- F <statement sequence1>;
" n8 f. Y7 Q' M4 L( p* p when <constant_list> then
! @" r+ Z! I/ b( \, Z, Y4 R; D! q <statement sequence2>;2 f8 L d. _2 ~ U9 Q' |
...
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<statement sequence3>;
7 i- }2 f6 z1 @& b& \end;
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5 X( b& O/ g/ U$ E+ J2循环语句+ L1 W$ q. n% e# S A' r7 P
(1) from <statement sequence1>
& y g9 B [" z until <condition> loop7 P h1 g3 G( \" i5 d! V! s
<statement sequence2>;
" M$ x- t& u) l w) m3 d: h, y$ v9 g end;* B% [9 E1 y% r/ r H
(2) while <condition> loop( q6 }% F' U) P, I( G2 S, E
<statement sequence1>;
1 b9 b: z8 M, S" ^ end;
+ r. A `' X$ `/ P* B4 C (3) repeat
3 L) ?/ ?8 U( H* h4 A3 M <statement sequence1>;
6 e( v& y2 Z/ V" v( U; P$ E: a% r until <condition>;/ T9 u3 _ d/ _) t* Q, k
(4) for <condition> to <condition> loop
. H5 |' [6 i, i0 T9 ` <statement sequence1>;
$ q+ |9 c- a! a |: Q/ V next;$ e! e0 B. x- x, n
3中断语句* {. K5 j% j0 _% m! w/ X1 w
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
& R6 M q7 A# i( T: Z还有很多,如有需要我把资料发到你邮箱里 - M! X' Y* B: E! `
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