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发表于 2012-11-13 08:48:12
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1判断语句
$ c/ h( G9 }8 H; F0 Y8 o if <condition> then" V3 m3 @8 v" d, z
<statement sequence1>;3 }- N5 Q( Z9 F4 E3 w: z
elseif <condition> then
2 l2 [8 m! m9 a5 L3 N* q6 ?# i p <statement sequence2>;
) ]8 e0 O8 y; K4 h; b5 L4 I else ! ~0 } B7 \" O: P
<statement sequence3>;+ O1 _: g- P9 V: L# r9 \
end;, [1 ~7 B$ O8 O# s6 _$ T' i
如果分支比较多，用：
& J6 W; Y$ D/ o- s1 {; m% F4 ]4 g" t inspect <expression>
7 }4 w" R# [3 E6 o1 l when <constant_list> then, l& @2 ]2 Z S8 O4 [
<statement sequence1>;
1 G% m2 q% g; }4 Z when <constant_list> then
. \ g# t6 d3 r! w6 N" c <statement sequence2>;
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else5 d2 U4 m. S, k! F3 [
<statement sequence3>;
1 o) d6 ?: r l# l' B6 b& jend;+ E: ~3 K: Z2 w* f, c+ m
$ R! }: |$ W C2循环语句
- I* N4 u( ?+ K5 F$ U (1) from <statement sequence1>
" ]) h2 F- U$ ? until <condition> loop6 g/ c9 L- R1 m* N; w
<statement sequence2>;
9 m" `: t$ I1 X8 _/ N. o end;
5 E& [# z' T) r( J" B. O7 s( W (2) while <condition> loop0 u; ~8 i; V8 R
<statement sequence1>;
$ R: Z5 g7 X1 s; n/ f end;! s2 h; ^; _1 d6 Z1 N1 P1 b1 P
(3) repeat
! P3 \: q$ I6 u$ X$ p <statement sequence1>;
7 y5 q* `7 c/ b. U! b; O# _ until <condition>;$ _. c3 z8 M1 ]. h$ W
(4) for <condition> to <condition> loop4 Y. U& M" ~ H; k
<statement sequence1>;
* W& Q$ f- N/ [# e$ I$ p next;
6 T6 }( d6 T0 o( J/ i3中断语句
+ ~8 R( h# |3 H: F# B waituntil <condition> prio <integer expression>;3 V [# A; s4 W& |. P( {4 j$ `
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2 r. o2 S- J3 u8 H- B以上为常用的函数！ Z! t% ^) H# I4 \# {
还有很多，如有需要我把资料发到你邮箱里 3 t3 u; ~" k6 b8 v1 m
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