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发表于 2012-11-13 08:48:12
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1判断语句
8 t# d7 l1 Q3 u \" B( k if <condition> then
u8 }2 }9 f* X& W# I, Y <statement sequence1>;) W; q3 v3 q7 U# ^
elseif <condition> then# T4 t/ {1 G! }7 z
<statement sequence2>;' e8 w; N( {3 s1 M7 B
else 6 g; b; A+ G: y# x, R; E2 P" y
<statement sequence3>;
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如果分支比较多，用：1 K0 Y" J+ I& w; r) \6 [
inspect <expression>
9 w+ m' }3 o. u9 o) z" U. B when <constant_list> then) n/ K5 a1 q( o- _8 T0 {3 x
<statement sequence1>;: Z) p: e& n3 r) j
when <constant_list> then
) K: B. Q3 i3 ]2 H: Z& N <statement sequence2>; ?. r' n6 s/ J; N, p- `
...1 {, j6 j6 w! h0 A3 W) h
else; a- B n( d y+ D6 V( f
<statement sequence3>;
8 c, b/ ?% U* @+ L% Yend;
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2循环语句% V) y) c# ?) i; I
(1) from <statement sequence1>: s& X8 h% b# l p) s$ i
until <condition> loop) [9 H5 @8 n- p
<statement sequence2>;0 T* a/ ~4 I4 D* o7 o# X
end;" e) U6 p+ ~1 q; X# l
(2) while <condition> loop
( A+ B( m5 H" I$ s- o3 x) f, s: R <statement sequence1>;
2 L/ X7 d6 l0 z: {+ `& g end;% [' }' y/ |( {0 q/ I, _4 e
(3) repeat 5 J& \& P3 X! L8 M! \
<statement sequence1>;
- E! N+ ~1 B9 `9 b9 T0 |- o4 c until <condition>;
2 V1 h" ?: w2 S* u' i( ^ (4) for <condition> to <condition> loop
$ K7 b* b; o% ^$ Q/ j. W9 S <statement sequence1>;5 X, o, X( @/ |' H1 c8 i, \
next;) ]7 z8 [/ }# H
3中断语句0 H d! T1 t- A2 t4 I& Y
waituntil <condition> prio <integer expression>;
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以上为常用的函数！3 w* E: R7 v* _
还有很多，如有需要我把资料发到你邮箱里 $ o- }0 b3 c8 V7 C# f4 t
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