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发表于 2012-11-13 08:48:12
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1判断语句
. C @6 S" d* Q4 w( g% v% G if <condition> then0 R7 l* i1 p8 [$ D* N0 a1 w
<statement sequence1>; ^. A, O- `9 y! S& D L B1 c
elseif <condition> then* N+ q3 F ~3 L/ o! n- ^; i; r
<statement sequence2>;
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<statement sequence3>;
9 C- C5 N, L& u8 D5 [2 ~ end;
4 g5 e6 c& P1 S5 p5 J如果分支比较多，用：! C# Z6 }- r# P. v
inspect <expression>
2 l( ^; M3 u& s E: @( M when <constant_list> then) b; ~+ Y/ D7 O$ z
<statement sequence1>;
, o' x, S* |/ |, F* _% e6 e4 c when <constant_list> then
* F F) ?3 o r7 A4 z- n9 x, M5 l <statement sequence2>;
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; E+ s# V h9 m, U( N; I else
% a, N8 i( G A <statement sequence3>;8 d1 F1 {/ ^" T% T
end;$ T' r, ?1 U* V% M5 j/ y7 B% }+ D
, q8 g2 c% b+ G* r+ D8 M; x% ? B# i2循环语句
3 K7 f. m9 d) K; Y7 I (1) from <statement sequence1># H* f+ r) `) \2 m
until <condition> loop
$ R. m) @ F- Q: h# d$ b# _1 Q <statement sequence2>;0 K9 |& n1 X' O& x. E2 E
end;
' Y0 u2 [& S/ n! c' Y# P (2) while <condition> loop3 M6 G8 D% G5 c, @; ?% e' n
<statement sequence1>;* m9 f! c; u: r) u1 f2 |+ m
end;
0 ]* d5 J& J6 r; n2 U* I2 G (3) repeat ) r' J1 V" P2 t1 q$ w
<statement sequence1>;" R/ I0 n! `9 p/ G6 b( V
until <condition>;' z% \$ U# }% {) c
(4) for <condition> to <condition> loop" n; i* ~ E, W& ]9 b
<statement sequence1>;/ h5 Q6 Z# K1 T+ @
next;
" y9 D/ q! V. q! N4 K5 T3中断语句 Q* b$ s/ j$ {, x/ d
waituntil <condition> prio <integer expression>;4 d8 a% U- B, A7 }! d8 q t
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以上为常用的函数！
! ]8 v; H% Y9 \- j还有很多，如有需要我把资料发到你邮箱里 ; P7 r; w h9 j; G+ b0 q+ [: M
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