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发表于 2012-11-13 08:48:12
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1判断语句. t9 z3 O. W9 i4 c% |, q
if <condition> then' C3 ]. J/ r5 |: ], o. Z2 y: z& p4 K
<statement sequence1>;8 w8 t* V' U% q/ h, g
elseif <condition> then5 J1 e; r# Z6 \5 F- Z
<statement sequence2>;/ b1 i. H: ?+ B1 r0 G! Q1 b
else
% t& W! K0 y3 k/ u) d( @7 { <statement sequence3>;$ k& @+ h2 q% E( \! z, d( i0 j8 Z; I. {
end;
3 ?5 X6 U m% Y如果分支比较多，用：
9 q6 A5 `! h. j/ ] inspect <expression>
$ s9 ^' U$ A$ c+ u: h1 Z7 W: X2 s when <constant_list> then. t, h% O9 c" w2 _. [0 I) A
<statement sequence1>;; h, Z; F3 ], d7 y
when <constant_list> then
- q; {& {+ ?4 P' T N <statement sequence2>;( r- `1 j( Y" j8 h3 e5 D" C
...
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<statement sequence3>;; |9 c5 \& {( `
end;: n- f6 ` v0 a7 O3 V$ l" q
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2循环语句
; a( \: M, h. B& V, A/ H (1) from <statement sequence1>
9 F M$ N G# \# W9 a0 k until <condition> loop
) `+ _1 E: y) F8 \4 ^6 l5 _& `) L* l <statement sequence2>;5 O8 r1 n5 \* F! n/ r6 I7 {
end;
! U- Y0 X5 \+ m7 s (2) while <condition> loop1 l) V" R! k ^7 ?
<statement sequence1>;# C# V. k4 O3 |+ N! Z5 Z
end;
+ w: m/ a4 C+ I5 c/ N (3) repeat 3 j4 E5 H3 M8 _
<statement sequence1>;
6 G4 J9 }$ J6 U, j until <condition>;
" R+ o- f& M- Y. e" \) Q (4) for <condition> to <condition> loop* x1 G: e9 g9 o6 G
<statement sequence1>;
; u6 d& u% v0 p; F next;1 g5 \* \9 k2 l% U ? J
3中断语句
* L# z! u0 h: |- @. ]6 O# Z waituntil <condition> prio <integer expression>;
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以上为常用的函数！ N7 D+ ^4 y3 n/ N& V+ G& `0 O2 n
还有很多，如有需要我把资料发到你邮箱里 5 e4 a5 q5 N; t/ u/ c' i
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