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发表于 2012-11-13 08:48:12
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1判断语句
$ r" T4 F7 r6 w5 j$ Y if <condition> then
( Q }( [$ z0 t1 G+ [ <statement sequence1>;/ N- g& B+ Y0 M8 c0 z4 m o3 G
elseif <condition> then
5 o) [$ d8 ]; V" }0 n/ I <statement sequence2>;
$ B+ v8 @8 ~4 H; p9 h( m& W else
. D3 J4 N3 H6 J6 w; S) V" x <statement sequence3>;4 \ ?, }3 g% _$ ?$ Z
end;' M7 G) {# D8 y# I% l
如果分支比较多，用：
; ~) ?9 H, k6 } x inspect <expression>
, C5 v# S6 F/ `) G. t when <constant_list> then0 z/ h6 h. u5 F% k
<statement sequence1>;# \; y. v6 |% t
when <constant_list> then! L; V+ P/ X. g4 J
<statement sequence2>;7 F* _$ g) _1 Z- m- h
...
! w( U9 x5 `6 ]+ k; H. n7 A: H else, J- q* ]1 j9 l0 U: d3 t
<statement sequence3>;
- {, i4 M" H3 e! yend;4 J) T! n0 y& Q+ ?1 C- M
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2循环语句+ q: G) M, f0 C5 h) J
(1) from <statement sequence1>
, i' y) m, B: @2 c ~9 c until <condition> loop
, |. [+ @* B* G2 T <statement sequence2>;+ u- U& [& T& E6 a+ G6 G
end;
" I- W! u1 y' T2 n& S4 l0 T (2) while <condition> loop$ h8 o+ B h3 A4 R9 \# j
<statement sequence1>;" D, P: P2 X( E0 W' H$ U& l
end;
% U/ z }% |6 [9 ]% ^ (3) repeat
* [; w: M+ Z4 f; _ <statement sequence1>;: R! h# q: x9 H; r* u; t |! h5 |
until <condition>;
* g; v7 D! s: C- e (4) for <condition> to <condition> loop' j8 X L O4 X8 x$ Z
<statement sequence1>;+ e0 Y: U: V' }; X3 g
next;
% _) {( l6 H R9 L% z. h" Q3中断语句
( {: ~4 l! F$ U- \* @ waituntil <condition> prio <integer expression>;
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以上为常用的函数！
5 w# H! O9 X, t( ^% W4 k6 W还有很多，如有需要我把资料发到你邮箱里 ; a# R2 M% w1 @9 o/ |9 k# H( I; o
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