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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1 b- y7 e+ j" F* H; h
if <condition> then7 l6 Z5 g8 V0 Q& T6 U4 ~
<statement sequence1>;+ S5 E! `" q2 m" E
elseif <condition> then7 k+ x7 Q% b, c: L; g% [' q( S
<statement sequence2>;
- s, ^! K( l2 A else 2 U- D! N! M6 S. x( \
<statement sequence3>;, _( t6 ~, u* G) |1 \1 G
end;' |( E4 q' w- B$ i
如果分支比较多,用:, f) M# Q: I! V% b* {
inspect <expression>; k5 [( i1 o1 i; I
when <constant_list> then. \# ?9 P' w6 T7 t3 g
<statement sequence1>;) M% Y, L3 S7 L, ?
when <constant_list> then
1 U: o$ |; q" }2 a: Q- a <statement sequence2>;
) s- W& ~7 q" b ...
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<statement sequence3>;
& e) j% \4 Y$ wend;$ x1 Y" N4 a$ e2 C9 K
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2循环语句0 H& q R/ J2 T' b; B5 b
(1) from <statement sequence1>9 M' y& v* u( [' x7 C2 b3 h
until <condition> loop
7 Q- {& u7 h, x) Q" M <statement sequence2>;# V9 l* X. D P6 ?- \* k0 S
end;# ?: B3 Y; p. l$ s! b2 j# E
(2) while <condition> loop# k+ R3 g8 p2 H
<statement sequence1>;2 ^3 C+ B: q# H$ ?
end;
% g# x* P& l6 L9 z (3) repeat
1 R* M/ Z0 X9 d8 C0 Z- Z5 ~0 @9 ~ <statement sequence1>;2 R! Q" P K; w0 b+ s
until <condition>;
( m* t9 E% l4 i (4) for <condition> to <condition> loop0 W- I- }. n- A
<statement sequence1>;3 t: X! X+ [, h W
next;/ J( {4 v" h7 e$ m; d5 Q. M" U% s
3中断语句
9 `* v4 Z4 ~+ a6 g( \% p- F c waituntil <condition> prio <integer expression>;
4 F7 o$ r$ V# f4 g3 k8 h! [, A J {1 ]
7 O0 Y! l- f1 c$ }! R* r8 @0 Q: w以上为常用的函数!# c( J) O9 K2 D1 H& J3 \
还有很多,如有需要我把资料发到你邮箱里 4 H9 j: e4 y4 Y
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