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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
' C4 x6 O8 s& p) p- r: O( k0 N$ l. G! ^ if <condition> then" Q. V' K! I$ K
<statement sequence1>;
7 X6 Y) k: Q, w3 @- V1 H& l. F elseif <condition> then% B/ L$ X7 S- S2 Q7 \2 B
<statement sequence2>;
( |, d: l6 p9 q G, l0 W else
( k G! I0 J8 ~' ^ <statement sequence3>;
5 g' b3 A- V2 J) m% M end;
3 C! e+ O' P, `8 r# Z如果分支比较多,用:5 g4 z1 }$ a" u @- B3 ~( C' i
inspect <expression>
" P9 Z H. d+ ]2 k' g9 l$ B: D when <constant_list> then+ \: b4 N% \% v" k: O/ y
<statement sequence1>;6 \" v) Y2 |/ c- M+ i& s
when <constant_list> then! S' l7 p& X4 |7 P5 v
<statement sequence2>;
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else
`+ u, z- J8 b <statement sequence3>;' N% J0 e" M5 o! a* O L
end;
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2循环语句
; F0 U p* l) a$ v$ Q8 d (1) from <statement sequence1>6 f( r6 h& E5 [0 i6 Y+ s6 [
until <condition> loop2 L2 e, O4 D# m7 h- W* o
<statement sequence2>;
4 I( ]: |5 z# a: E, h1 y, V end;
; f3 k% _! ~4 H \6 ] (2) while <condition> loop
1 X7 |4 _4 ]$ f0 v <statement sequence1>;
) a6 w5 j: g9 |4 M7 S3 G end;
2 }' N" a2 s/ T9 Y+ H& I* t" x& g3 z (3) repeat
1 o) o- G$ H& [6 w2 _6 F <statement sequence1>;( ~' N) B( c3 _& y* Z
until <condition>;+ k' o1 |4 K% R- s: d
(4) for <condition> to <condition> loop2 c! y) C! \2 O: O* e" D: }
<statement sequence1>;
{' u+ c( r' y. O) _# j r5 o( K next;: C0 ]0 r& w R
3中断语句0 l, ~ ^) j0 V, n! w; V
waituntil <condition> prio <integer expression>; U! q: J* P- o) G' [0 \4 U
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# ^5 p$ b# q8 l7 V. R6 a以上为常用的函数!0 X, q: D( I& x3 R' j/ a
还有很多,如有需要我把资料发到你邮箱里
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