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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
% K' ~" {: Y) Y! |: U& Y if <condition> then
6 R z: I6 w0 X2 Y t. g' m, e8 t <statement sequence1>;. Q$ l8 u& W# \% ]# I; u7 L
elseif <condition> then) J* |. o8 q7 I7 o) C5 g
<statement sequence2>; ~5 E: D3 g0 Q- s$ @
else $ n) f; m. S0 Y
<statement sequence3>;' r/ g s; E, {8 h2 ? R
end; A5 `; J( e( u6 S
如果分支比较多,用:3 P: @3 a- t1 ~: p
inspect <expression>
: ]( k, H3 k2 b) y* X1 R when <constant_list> then
% X( o7 {' q8 F$ Q+ ], W <statement sequence1>;
. L* p( U: M6 \1 H0 f when <constant_list> then3 F' H4 F% X3 a$ m1 U" M. w# M
<statement sequence2>;
) C" o- M. a1 W& H( r* [2 } ...
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<statement sequence3>;6 _2 o7 d9 E6 m8 Q3 G0 c6 X8 k
end;! A( y) W$ g ?
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2循环语句
, w9 h# N) L+ i) @ (1) from <statement sequence1>8 W8 p3 T; E1 g3 E8 K
until <condition> loop2 X6 n: G; S8 n# ?4 _5 O9 `
<statement sequence2>;
+ c9 P6 u* ]8 S4 v i end;2 O) r5 K; a$ G3 [- P: N1 i
(2) while <condition> loop4 K# m& O4 b/ x# G
<statement sequence1>;
3 b3 N6 s+ U. ?- S5 \ end;+ `3 F' b. b- x7 {' T
(3) repeat
* B, z0 p5 S9 K& |) v$ N2 o <statement sequence1>;5 H7 }( |! X* `3 {, ~; q, S
until <condition>;: a7 ]* C& N- z1 p) p
(4) for <condition> to <condition> loop2 y- v8 Q) Y% {' ]1 ?' g
<statement sequence1>;
# m: c5 g; c- R4 \4 f: g. e& M next;
3 ^" X" u5 p9 K$ Q8 Q/ J) w! c p3中断语句4 Q2 F* R3 w9 r% L6 `
waituntil <condition> prio <integer expression>;
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以上为常用的函数!8 I* p8 a" N; k1 b7 i
还有很多,如有需要我把资料发到你邮箱里
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