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发表于 2012-11-13 08:48:12
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1判断语句% W2 L5 P: q3 S4 `9 C- F9 e$ j! j
if <condition> then) b4 ]/ h# J# l8 u: ?9 I- f+ S
<statement sequence1>;
9 E a5 c+ w+ e7 T$ E$ H elseif <condition> then% a8 j; r9 @2 I# [* f2 @. Q
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:
% v4 ?# U1 T% Q1 a inspect <expression>
, R+ p& H+ ?( F! G% j1 p1 O! W when <constant_list> then
$ R: [% j' `1 |: M* q7 j# ` <statement sequence1>;- R+ R& t: E5 C2 I7 f* c
when <constant_list> then
2 Q" i( [- B% z4 V <statement sequence2>; d4 H. i P! i! h4 d/ p; R4 T6 |% q
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else
+ _) P- Q9 g& m; @ <statement sequence3>;
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2循环语句
* m6 m& G# ^& i$ d, _8 Q2 s% B { (1) from <statement sequence1>
8 g5 n: i3 v. R9 L% J( b until <condition> loop
0 R3 @7 V3 p4 T <statement sequence2>;
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(2) while <condition> loop
# a4 O4 n$ }/ k2 Z: n& `1 x" r <statement sequence1>;: [3 i' e7 F4 c% a# Y9 [. {
end;
( ^( F" p; E! l (3) repeat $ I2 `/ L8 c7 N' ~
<statement sequence1>;
" @- C5 E% h R6 l/ h+ N until <condition>;
7 |- \. S9 g% P (4) for <condition> to <condition> loop
: G; K: E6 t2 Z) ~$ B <statement sequence1>;
! h. e" W* M. }8 L) T3 _3 Q8 k# J next;! X0 I0 O7 t5 x* L# y ]
3中断语句& e4 [! E2 P6 v# K# C! `0 Y
waituntil <condition> prio <integer expression>;( [( S+ V/ \+ R6 w% p, [
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以上为常用的函数!6 Q4 i' ]- L. B% F* J, Y
还有很多,如有需要我把资料发到你邮箱里
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