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发表于 2012-11-13 08:48:12
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1判断语句( k t o" j0 N1 y3 o6 X
if <condition> then
/ R/ y7 e% t( i" T <statement sequence1>;+ x; X$ M+ d t. L
elseif <condition> then
5 F7 V- H/ L' Q" t" E0 Q <statement sequence2>;+ {) K& J' S9 l3 w6 o( b7 C
else ( l. X3 }3 D# L k8 S# D
<statement sequence3>;
* i, @6 F1 [1 |1 f5 h end;
6 A; [2 s" `' ?$ R如果分支比较多，用：6 I* A! E3 f' S( `" f
inspect <expression>! H0 ]1 w; P7 u1 u
when <constant_list> then
# r0 [) U9 K) V) f' k2 w" W <statement sequence1>;
$ r. g h' w7 G, \' _ when <constant_list> then# m1 d* }) r H& ^/ W
<statement sequence2>;; ~8 B5 C& p' G3 v: d6 w
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else
" |6 @+ E$ X H4 c) n' `2 x% u <statement sequence3>;
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2循环语句0 B7 i, J+ k: N
(1) from <statement sequence1>
& K# a( r& @, }& @- C& s: L! ` until <condition> loop
6 i% |0 k- v7 B3 | <statement sequence2>;
; q1 Z. t T) |8 i" ` end;, i2 i7 z+ P* }
(2) while <condition> loop) d; V' {: s4 Y% B
<statement sequence1>;. }) x: S3 [" N* K$ E2 `
end;
% F; j& Z. G. G (3) repeat
& d8 h5 c/ r; ~ <statement sequence1>;
1 x6 n8 g' f3 q until <condition>;8 Q* a8 K3 W5 {; I
(4) for <condition> to <condition> loop
" j, F* g1 o- N e <statement sequence1>;* \9 T2 C k( y
next;2 [7 d+ z0 j% [7 e+ L3 a
3中断语句
- N; |* B) |5 U& l waituntil <condition> prio <integer expression>;) M) F1 u$ g' \
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& e6 K# D9 T3 [7 s5 G以上为常用的函数！$ {+ X3 P1 Y) {3 t0 E; k: A
还有很多，如有需要我把资料发到你邮箱里 5 H( p1 p: R+ d, @9 z
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