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发表于 2012-11-13 08:48:12
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1判断语句% }. k9 M* w3 h, v( z
if <condition> then/ Z( i& a+ u, I# N6 v
<statement sequence1>;
2 ]) M0 f0 o' u$ R. g/ D elseif <condition> then. j, {; r ?+ X2 s( J1 L
<statement sequence2>;
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<statement sequence3>;$ a9 ^* u8 M5 [) |2 L5 c
end;5 q) m5 m9 d& _
如果分支比较多，用：
) m# Y2 E0 @2 _( g inspect <expression>% s& M. S" [; K8 s
when <constant_list> then
3 A. P& ~: p6 m) I( v <statement sequence1>;
8 F. ?2 c' h0 Q when <constant_list> then3 E; i$ d6 B9 q; u+ o
<statement sequence2>;* Y- T2 x2 U" x B' F# N% L# l) u
...6 y. q3 J7 Y7 z% }0 y/ y3 h
else2 S6 u$ q. |9 G7 U; f; `
<statement sequence3>;
4 ]8 }3 G+ v# Y5 [, l+ y- q c, Lend;
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4 {. R* M, v& \. r+ N2循环语句
1 a: `0 J3 Q& I. X0 v/ J& E* l (1) from <statement sequence1>- D+ D( c I M) s1 W- h) {
until <condition> loop; A' d/ L0 G& P7 t9 Q/ z0 f
<statement sequence2>;
$ m& {( G% R( a8 l& p end;2 R; n3 s( Z8 g; S% m
(2) while <condition> loop/ i2 m9 M9 t4 X! V$ Q" W
<statement sequence1>;
& H! D+ F5 L: E9 t# l end;
7 M1 U) h A2 w (3) repeat $ k8 b; a# p( G+ ^. y' U7 S
<statement sequence1>;7 z2 b0 h/ g+ } u
until <condition>;
/ F. z- G$ V! ~' @ (4) for <condition> to <condition> loop. o' i7 H! y1 f7 [
<statement sequence1>;+ B2 P6 K: X* T5 x, u ^
next;
+ S8 ]4 ^' K: z( x4 i3中断语句8 ]2 l8 X1 {) R2 X6 j& M
waituntil <condition> prio <integer expression>;, F' w3 d" d* z; }
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% m% C; V. k- i以上为常用的函数！
* \0 v# c" J7 q3 g S还有很多，如有需要我把资料发到你邮箱里
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