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发表于 2012-11-13 08:48:12
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1判断语句8 W7 U* S, V, Q( w4 `! s, O) B. ^. S
if <condition> then$ }: G- ~8 q( e; U5 j6 _
<statement sequence1>;8 `$ }# m+ a0 o* @" |* b6 u
elseif <condition> then& q# @: K7 \! {4 D* B0 Z
<statement sequence2>;
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<statement sequence3>;' o1 W/ g4 O0 X1 f2 o
end;
$ X) `2 ?: _, N1 y如果分支比较多，用：
( `: x( {& w! {$ A5 ?6 C& n$ D inspect <expression>
5 V3 f! Y" z, S" r* V when <constant_list> then
) N7 D& E! o7 S0 D9 n- F <statement sequence1>;& W! t" C" w$ a) X
when <constant_list> then
' l2 |3 ^/ J# _6 I <statement sequence2>;2 }+ _# \2 d* B! Q2 V$ o
...8 k1 {8 g* F& r, i) L3 _
else+ P6 z+ o0 Q) `$ W- Z
<statement sequence3>;
$ v( U$ f; k( {end;, }3 ^/ O( {. b2 j
4 J8 }+ x- w( ]: b4 J* R* P2循环语句+ i; u. s& B/ d, ]
(1) from <statement sequence1>
9 _* @: b. s" r3 P& l0 W9 B until <condition> loop* T m/ x1 d) E7 D% s! G& H
<statement sequence2>;
: S3 f) X- }# r# u! A, k+ }3 e- { end;) X" x3 A& i. ]% Y5 Z) d
(2) while <condition> loop
2 }$ z( K9 J: P4 i: | <statement sequence1>;5 V" V. z; _7 H: n" s
end;3 z, [9 E. b) _+ l( x! q
(3) repeat
j, S7 _4 }. ^ x <statement sequence1>;
1 ~; m6 V. n# H- P until <condition>;9 J; O, S; d2 u9 Q* w
(4) for <condition> to <condition> loop" X( h9 d: Z) M) r" }& a7 A! U
<statement sequence1>;- t4 b. y+ B g. n
next;* R+ C1 [6 u. E& a5 }
3中断语句
3 \0 H. y3 @& z T/ X waituntil <condition> prio <integer expression>;
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. k+ ?$ k9 h: j$ ]以上为常用的函数！( _ k W6 r2 p
还有很多，如有需要我把资料发到你邮箱里
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