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发表于 2012-11-13 08:48:12
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1判断语句
. |" S0 \; B0 |6 d% N0 J if <condition> then7 i7 h& g: s' p# y: A4 N
<statement sequence1>;" |/ z$ E& u2 j7 T$ C* Q5 C8 u
elseif <condition> then+ Q) r& I* U5 w& d6 r) x2 K* h% ~
<statement sequence2>;; w) J; k/ ]' t$ \/ s5 k( G
else
& T6 d- ?; B+ X: \ <statement sequence3>;
) c. T. I4 ?; E* U& X end;
8 j+ v* ^4 J {如果分支比较多，用：
4 k: {2 ^2 N. T5 m: W inspect <expression>6 n3 ]0 ?% u3 H, p0 F, s
when <constant_list> then
! P8 |( @6 n4 o9 e$ t+ i <statement sequence1>;
/ z2 l8 f# Q! t. h when <constant_list> then
3 W+ \8 g1 I* E" Y3 b, m/ t <statement sequence2>;+ u$ e h8 H5 v1 q) j0 P
...# c: T! s/ f% c1 a
else; R. s. x# n# v9 j" V: v
<statement sequence3>;
( Z0 }% I$ b O: l; ?+ C& send;! P+ T- |' h! H' C8 k5 U: Q' d
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2循环语句, i1 z! O0 e) q+ u# I
(1) from <statement sequence1>: ?) w0 g% c+ P: U0 L) g
until <condition> loop* S6 x1 a+ `5 p9 e5 i8 n
<statement sequence2>;
! g- h9 ^* \. h end;
" {. \ y8 h* z (2) while <condition> loop- w5 J( ?" ^3 e0 o
<statement sequence1>;
6 [( E. O. F9 X! [) _ end;
, |* {+ O- f7 W; @' q! m (3) repeat 9 h, o! W3 v( Y4 d0 r0 {: h
<statement sequence1>;
* c. N- I* s5 @$ W% U2 o1 `# Z until <condition>;
^) R! i7 p+ b# w1 i0 G, ? (4) for <condition> to <condition> loop
2 J* B0 Y" }9 O/ _1 D: u <statement sequence1>;! S& }4 d n. T* O0 [) t, \9 J
next;
- d6 `9 y B, s/ i! f2 \3中断语句
8 N1 z- |4 [% l O, k1 j( O waituntil <condition> prio <integer expression>;6 g2 R( B/ l/ R9 Q
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以上为常用的函数！6 m$ B4 [ [* X5 O" m2 ^
还有很多，如有需要我把资料发到你邮箱里 1 i8 W/ a6 P# T6 d
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