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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
% G; i& w+ y: M" K+ e if <condition> then/ g+ j6 i4 ?2 h: ~& H; e& M
<statement sequence1>;, k! n% i3 H" K, N, f
elseif <condition> then
6 q2 J# s7 E' J' H/ m& I <statement sequence2>;2 x1 q% Y1 a3 N. G" X$ ~
else / {: B: S) \ P: G2 K
<statement sequence3>;' ~4 w7 ?! W" C- c& A2 X' n. ~& c
end;; k4 l( O# l" U" m8 Y
如果分支比较多,用:- B o4 V5 B" i. Y1 l: [
inspect <expression>
' ?: O$ `' z/ v' ?: c" C) l when <constant_list> then6 j! q" Z. w. [9 k" m! w
<statement sequence1>;
) D: h8 X* X3 |( s& ` when <constant_list> then
, E4 W: u( v' t+ c7 T& A0 H( s <statement sequence2>;
: J$ _0 _7 l1 F# @8 M* `* X ...
* J4 }& ] z0 }8 Q" g" G else/ O' l6 t/ g4 B* w! }; r
<statement sequence3>;3 |* P. W% [, \% e% h5 T% f6 t, u
end;( G7 ?0 o& Y1 v, N5 k$ k X
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2循环语句
1 M' E6 |- a3 j6 b# `* f4 p (1) from <statement sequence1>8 {5 s& |) ~1 R6 `
until <condition> loop
9 W2 K% f/ _1 H+ a$ J. v <statement sequence2>;: D; K( [: C" q9 `) v& d" v
end;
: q& j% [1 w7 g* N: I (2) while <condition> loop
5 A% X, e8 V: g9 T <statement sequence1>;
' c: G( R# L' x: u( f- E! e' N end;
6 @. ~! I* h7 N, R. _$ L (3) repeat
N/ `2 i! k/ W' M( s <statement sequence1>;# I4 e# O$ a5 J
until <condition>;
; m, K7 o, [) T D/ ?# W4 \& S (4) for <condition> to <condition> loop
8 t. k$ `8 {4 f/ \' s' a, s2 \ <statement sequence1>;
8 z$ L- f0 J0 Y6 a. }9 W- }' ^. U next;& w2 n! R/ d& {$ B5 p; D
3中断语句
+ J: E+ h% c5 L+ d# d v waituntil <condition> prio <integer expression>;
$ o, t7 ?5 r* @6 [" P0 e C" }+ J- k1 U/ p3 L$ N
. e/ {4 O9 z' N1 D" Z以上为常用的函数!' a" G: v4 S% v! ?5 t- x: U3 V) K6 ]
还有很多,如有需要我把资料发到你邮箱里 7 x, Z- W0 i6 V. m
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