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发表于 2012-11-13 08:48:12
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1判断语句) F p/ x' I. S4 z. S2 H
if <condition> then
! W. y4 G/ }# a, V- G1 W; n! w _% N <statement sequence1>;8 }$ \& k7 g0 {9 K3 {
elseif <condition> then9 A4 C2 p q# h- p( M
<statement sequence2>;
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<statement sequence3>;2 o% z% w; ^: G1 J- A
end;0 O$ ~7 e, u: ~; z& W: O
如果分支比较多,用:
O7 d: w0 j8 m" l$ ] d7 ^$ e* [0 D inspect <expression>
- r8 |* z) g* o) n! j& y when <constant_list> then: @9 h! b m' Z# S
<statement sequence1>;+ j) ?- I# t) O# `8 O3 @2 F8 E
when <constant_list> then+ t w" y. B, n1 z: }
<statement sequence2>;
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else& ] j; [& k9 G# _6 q: A5 o
<statement sequence3>;
% W( c* A# n p% P" V8 Iend;( R" j1 V2 v' @: D2 o# |' I
, O- p. d2 N5 Y, H. V/ |2循环语句! g9 K2 y' O$ A# i+ R
(1) from <statement sequence1>0 f0 V( S% b0 U& _3 h
until <condition> loop( y$ f( T3 i- Q/ O1 |
<statement sequence2>;
' X6 S' B K5 x ?" |, m end;
, u/ A7 q: m* I. O2 {* r+ H0 f3 Y, k (2) while <condition> loop
+ j3 \6 B+ a9 P1 W- T: i4 X <statement sequence1>;4 D# \( @- w" ^- |3 K& A
end;
, k" [! H! H+ ~& G: | (3) repeat 7 v; m0 Q5 m# ^8 C. |* K
<statement sequence1>;
9 I. D3 v! |3 V" Z( o$ y) ~& r until <condition>;/ ?+ z3 ]% j8 ]! {2 d2 {. Q3 n" \
(4) for <condition> to <condition> loop9 Z9 D8 j0 |( e4 G" T1 R; D5 w
<statement sequence1>;. z8 N. Y2 Y# k5 U1 }+ \% a
next;2 h+ S$ y! S# Z+ i' I. }- i
3中断语句
: |! R( j! E, X; y8 T waituntil <condition> prio <integer expression>;- e5 q& H9 T* t& \: ^& U
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以上为常用的函数!
/ n! o0 K' K4 p+ g+ E还有很多,如有需要我把资料发到你邮箱里 3 ~' `, Y4 r- t5 r! E
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