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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
3 |. ?- d* c" A/ _. N: X9 w if <condition> then3 [& ~; b! V- s, E O8 V& k
<statement sequence1>;% [' J( L+ @4 O, k3 r, p8 }
elseif <condition> then( d2 ^/ W6 j2 G6 Z2 y$ y: T9 C
<statement sequence2>;
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<statement sequence3>;
) H* B' R% ?9 p# @3 p% c( \. P end;
6 q P% N6 P3 w5 c: I2 ?如果分支比较多，用：4 G. K! z" y1 r$ Q7 j
inspect <expression>
6 Y0 m* _: e! U% n/ b/ U when <constant_list> then, Y& N. f! {; S/ A6 i
<statement sequence1>;7 P* K3 l; L$ U" l. i/ P
when <constant_list> then
$ l6 J3 }3 T B) m! E, B. S% g <statement sequence2>;" o# r! f6 p Z8 {* G5 i. g. c
...( `, x4 X4 J7 n6 k3 C
else9 _2 y- B( N) i$ o& ]2 s
<statement sequence3>;- J) P3 }( }& V" h0 j4 @9 e
end;
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' n! p _0 d* X, @5 V! n3 Z$ A2循环语句
0 ?3 a z: j+ P) K% @3 s (1) from <statement sequence1>
8 d+ Y% ~: z$ ]; z9 s$ o until <condition> loop0 g( ?# b4 e6 E4 L
<statement sequence2>;; J, f/ B$ U$ x# P3 x: ~
end;, d, H5 t: K5 p% o( R
(2) while <condition> loop
4 g+ A1 y' `# V# k0 n <statement sequence1>;
) r5 S. T' c' T1 }& Z/ U end;9 p& O& w) F8 J& B) Z
(3) repeat
" P3 ]; |0 b \, t/ [ <statement sequence1>;8 F6 W( ~* o9 w i8 l: N ]3 S
until <condition>; S3 g. K5 E4 l+ J1 h% t( E
(4) for <condition> to <condition> loop
; d Y5 l: t+ w6 H8 o# V <statement sequence1>;
+ A' k7 t# J' Q& I" w4 z next;
7 Q8 d% s% C% p- s, \( N3中断语句7 _8 @. } Y5 A/ I6 Y7 z
waituntil <condition> prio <integer expression>;% `9 B+ y1 u. d S5 \- \
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/ Y5 m6 G( ^( ~) k. Q6 @) m6 r F以上为常用的函数！1 \: r4 _* ]( i3 p" W$ A
还有很多，如有需要我把资料发到你邮箱里
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