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发表于 2012-11-13 08:48:12
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1判断语句; E! i8 r9 U! e9 M
if <condition> then+ o4 h; h0 W: g( l
<statement sequence1>;) l# L. y) o: ]& e; I& M }
elseif <condition> then5 y1 U3 i& v( Z. ?
<statement sequence2>;( O# \; ?; a8 k
else ( Y* n8 x0 t* P c
<statement sequence3>;
* Q( T6 C% O* P6 X- k( `5 _- f7 z' _ end;
; h* r) ~1 J3 d7 `! {) c5 i如果分支比较多，用：
4 j+ m$ {9 \' c( y A: B9 ` inspect <expression>; c5 Z: u) ^' ?) d. A
when <constant_list> then o8 G* }2 k; `' V0 {
<statement sequence1>;9 X% t# m8 ~& V
when <constant_list> then
V) j# B/ P& X* j <statement sequence2>;
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else
5 V D5 A: O* M4 b' m! F <statement sequence3>; D$ O2 ?3 q8 I+ t+ v- E
end;, i; h" [4 {- x3 w; ]5 C
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2循环语句
) k* i4 P% E% T* A (1) from <statement sequence1>
f8 m+ M+ { p% x until <condition> loop
, q5 F, ?7 `* d7 H' ]6 S <statement sequence2>;* P1 A4 S* n1 i0 W2 U
end;
$ D' P! R d! C5 J: h (2) while <condition> loop
2 w ?# L9 V- @2 O1 l <statement sequence1>;9 K$ H/ p7 X; m/ c* `2 E/ s/ f
end; }4 y* {2 C% F% }0 O; f4 S
(3) repeat
- Z# K! |3 L2 h, L. R5 R9 | <statement sequence1>;
$ t; Y1 b* s9 V, ~0 p J6 j until <condition>;3 ?4 R) G* d/ j" |9 `7 A) Q
(4) for <condition> to <condition> loop3 h r1 k2 f+ x
<statement sequence1>;
1 [5 U6 r5 D9 j% {$ a9 u next;! P9 {5 l- d/ R7 v" p
3中断语句 E. j4 T) q1 d$ l" Q u8 ]+ i
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
3 c' j) l/ h7 x! E5 y$ x! e1 @还有很多，如有需要我把资料发到你邮箱里 + ]; o5 r- S5 ] J3 k
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