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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
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<statement sequence1>;
4 j( p% V' O1 u$ v elseif <condition> then; Y, v/ ]( ~. B
<statement sequence2>;6 _3 h6 @7 k/ Z. p& `
else ) R6 f7 j4 p! C
<statement sequence3>;
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如果分支比较多,用:
2 A2 e0 X' m1 w8 h' R: E" e inspect <expression>
& t9 j% a: Q. P8 V# K0 G3 b9 q when <constant_list> then/ s7 X3 B6 E7 Z' n
<statement sequence1>;- Z! C5 G7 _- w
when <constant_list> then3 `1 n9 e H+ h2 l
<statement sequence2>;
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else
7 Q( I. d! p# q; |* h7 H0 q8 o) k* ?- K <statement sequence3>;" o0 M+ \8 b, Q: Q3 O1 r3 l+ y d
end;! D( U) T8 d! L; {# t& n
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2循环语句
4 u& j+ z; n7 m( K4 R; o6 J% ?4 a (1) from <statement sequence1>
' E( l* }* B; T4 g5 K8 Y7 |+ f6 ~ D C until <condition> loop5 u( V1 V) n/ L# _8 W6 g+ [; ~9 {
<statement sequence2>;
8 q. B6 ^* G: h/ I4 N. ^ end;
; [1 b& U: E4 b1 l5 L (2) while <condition> loop4 e4 {# d5 @6 A' T. Z8 D
<statement sequence1>;
; R3 A) r! `1 C8 P0 l1 C& P end;5 w4 ?8 I: J" m# o s) f9 N
(3) repeat
6 l+ h! x7 B7 q( {) O2 S, s% p <statement sequence1>;
3 t/ Z5 z" n) ?8 Y3 d$ s until <condition>;7 ^* P2 z; }; D
(4) for <condition> to <condition> loop
+ ^) m5 Q9 H3 Z' `- C4 O+ Q <statement sequence1>;5 h6 W3 J, Q7 F8 r: T. u
next;3 n3 y+ s7 d6 L; Y; B# r; u$ }
3中断语句3 k: F+ J( g5 @8 i: h X3 u1 W* |- P
waituntil <condition> prio <integer expression>;2 m0 X+ I X/ i8 e
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3 A+ g: ]% W! \# A a, U以上为常用的函数!9 l8 S, t; Z/ i5 L" Q4 p
还有很多,如有需要我把资料发到你邮箱里
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