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发表于 2012-11-13 08:48:12
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1判断语句$ N0 ?9 `; n% C' Z; C0 L- O
if <condition> then
7 n3 A/ ?1 j: p. l <statement sequence1>;
* Z, \6 S' e" v3 ` h8 _ elseif <condition> then
0 ]8 a/ K5 y# w6 p0 L. } <statement sequence2>;
0 u8 c# B% S5 J else ! v# z5 {5 Z3 O4 s: h7 X: j# T
<statement sequence3>;
' B9 r; @# B: x! `9 a end;
" u. ^4 b0 S$ {7 l如果分支比较多，用：3 D% d* i o9 E# f8 o
inspect <expression>/ {# s/ Z5 w9 k4 D. b( B6 [# A
when <constant_list> then* X4 r0 U( L+ c1 r2 W' Q
<statement sequence1>;
0 `% z4 T, L* ~: N+ R2 x! w: z+ x when <constant_list> then7 O# H, v8 O3 H3 t1 o( v
<statement sequence2>;
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else
% |5 \+ j& L4 ~; ^- @ <statement sequence3>;: Z+ |; i/ Q6 P; M( Z8 F
end;
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j8 P8 L* a5 z2循环语句& ?1 J2 q; r8 T. W! u* S( `
(1) from <statement sequence1>
2 [ [. L6 d. h until <condition> loop* o; `+ Y8 p5 t# \/ O) l( c1 b
<statement sequence2>;
0 L7 f+ p+ Y. `% w3 g end;5 Y- D' t# U: P' ^( h
(2) while <condition> loop
7 b/ L" {% O b2 L <statement sequence1>;. @7 B* K4 c, V, o g7 k
end;9 E% T; e' y2 L' x6 D
(3) repeat
2 R& C4 I2 @( e! m: c7 P3 s6 s <statement sequence1>;& K' \/ u1 z" H+ u
until <condition>;" q$ t0 x2 U$ Q
(4) for <condition> to <condition> loop
5 b) @! ?, z" O! g <statement sequence1>;
: D+ @! H( \' i' y next;
4 L4 l1 j- E, T4 O3中断语句
) H9 X# k+ D) U) T8 k0 V waituntil <condition> prio <integer expression>;( |+ D: x4 ~6 g$ d. R, Y
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以上为常用的函数！5 V5 ~; m6 c5 \# F
还有很多，如有需要我把资料发到你邮箱里 9 Q! R8 r4 O9 M' `: a% E; J6 _ d
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