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发表于 2012-11-13 08:48:12
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1判断语句- u7 q+ C* ~; @; j9 R
if <condition> then8 l, g( E: d& W! X
<statement sequence1>;
' u! n$ D0 X1 d' T2 c" O& d elseif <condition> then! V V( i, F: o' X
<statement sequence2>;- W& C3 ?+ i7 P, S
else
- [! C4 W$ i6 |( c, C9 Y6 o# o- V7 K <statement sequence3>;& F( y; g+ v# s1 Q$ f3 o/ G
end;
6 m# c4 I( i( E1 o+ C如果分支比较多,用:
2 \7 u2 g0 E; E- C- A inspect <expression>
5 N0 T/ h% h D; }' g9 M; P when <constant_list> then# U* ~/ u; _. E# g8 H
<statement sequence1>;! |0 R3 e/ A1 B' x: I/ k
when <constant_list> then
6 _, T) N0 }- V6 k3 F <statement sequence2>;
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else
2 P. t4 z" Z. H7 I% n! B <statement sequence3>;* E( k8 j; _% o: x6 p
end;# _( ]% m+ M8 B+ R
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2循环语句7 C, ~" \8 u; d Z, |/ W9 u
(1) from <statement sequence1>
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<statement sequence2>;* k: b+ E3 ?4 r2 N
end;+ X% s8 Q2 ]/ O: M; b& Q4 m
(2) while <condition> loop5 |. _7 n H8 @/ e
<statement sequence1>;
% C' @8 {% c, @7 B8 q: n end;
& ^% Q7 O- `6 q6 J, T" ` (3) repeat 1 J I! b/ ^2 w# h! u/ ?
<statement sequence1>;
; m' k/ ~2 \1 E6 ` until <condition>;
. ]0 y' F, N& }* X (4) for <condition> to <condition> loop
( ~3 i0 a' z u; `; d l <statement sequence1>; V) F9 z3 \* v* C/ O" z* V4 N5 w
next;
: x) H* w" M8 Q& j. R) ]( T0 `3中断语句7 k' W8 U3 X* ~2 C) r+ @
waituntil <condition> prio <integer expression>;
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以上为常用的函数!1 t9 F8 i) G, s
还有很多,如有需要我把资料发到你邮箱里 " ^# d% v* W! o" ~: `1 s2 a: L
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