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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
" O5 a3 Q+ M7 B if <condition> then% R3 s7 r7 d8 x2 e6 c$ E- A* b
<statement sequence1>;5 R+ ~0 u4 d6 ]6 y
elseif <condition> then
4 E2 r0 }! b0 \1 |+ ?+ L <statement sequence2>;
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<statement sequence3>;5 o: A& S* q' A( X9 s( ?
end;
- M4 X$ `; J9 m h如果分支比较多,用:# t7 M6 }+ A: \' h7 B4 J5 b9 U0 ]
inspect <expression>* |9 G! N! p2 Q" Y! T& N2 _" t
when <constant_list> then
0 w3 L1 j( ? h$ F5 P" n4 g/ W <statement sequence1>;
X% l) t; M( }8 a, V when <constant_list> then" v8 h( z) x ^$ o; z
<statement sequence2>;
2 \! g. q! _, G% W# K. } ...
! |" b' x0 S" g9 F! N0 _ o else
0 \) V( F) E) f/ X l, ^ <statement sequence3>;$ K5 t* w& n2 A. B+ M, W+ A
end;
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2循环语句% T5 |! F# W" Q
(1) from <statement sequence1>
6 W! \2 i) i7 b until <condition> loop
+ e! u: f8 u6 o& K: } <statement sequence2>;% D4 S, T* T2 J; \3 Z& y
end;
* V* E; o9 Y0 H5 w (2) while <condition> loop
( e8 q( I5 M0 h9 d) n* Z8 y% V$ C. | <statement sequence1>;7 q/ u. d" P5 {. Z
end;- d- J0 @' i0 Y$ L' |/ L
(3) repeat
; I2 F! N* N; c8 L. @! A7 i7 \ <statement sequence1>;
0 z9 w+ I J2 c) M4 o+ o: f until <condition>;; j, G" u& f# ^4 W
(4) for <condition> to <condition> loop2 H0 N1 N* c5 ?# y
<statement sequence1>;
9 u1 ` c5 }3 X+ s& N/ h next;
9 G8 Z& U( G3 O0 _3中断语句
' |, [' R- H4 w6 @" E7 M5 w4 h! ` waituntil <condition> prio <integer expression>; C# I. t u0 D; E: s
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: o9 H# _/ o4 J以上为常用的函数!" p: `0 L& z' p s) y6 w5 {
还有很多,如有需要我把资料发到你邮箱里 $ a! [/ e8 v- [5 _
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