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发表于 2012-11-13 08:48:12
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1判断语句- l$ q' }0 Q: Z9 E9 q# U# `' N# V0 z
if <condition> then+ _; a1 k8 A7 U0 P* i; S
<statement sequence1>;
' x/ J& f* @* W8 g# f elseif <condition> then
u% o k) p; a- b# I/ R8 H0 M% t7 w <statement sequence2>;2 u5 ]6 Y* B8 O
else
# M$ W/ I# ^" e+ R" h9 S3 F <statement sequence3>;
! U; h0 P5 H* \4 U end;
/ R9 F1 q0 U+ Y6 X如果分支比较多，用：
# x9 f& Z! |( V* {3 C inspect <expression>8 ]( V1 U% i7 Z/ p. C3 Q6 ~0 ?
when <constant_list> then
7 s2 s3 G9 d c% d' a! t4 ]0 g <statement sequence1>;
8 i: m6 h+ o* | when <constant_list> then
& N/ `5 J: K) X# y0 W) U1 C <statement sequence2>;
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else2 a7 X: s6 B" P' g& ]) G& r
<statement sequence3>;( D% H/ Q+ G& _, x. b0 C# S
end;2 h% n* }$ `$ c: ?( B& R: Z
* l0 @% R: c( V& Y! R; a2 C2循环语句5 v' g. U+ v+ O
(1) from <statement sequence1>/ ~ w/ `3 m6 b& H4 {
until <condition> loop
+ |# o' |4 p. } <statement sequence2>;
$ ^% n' v9 A! s; o* K% \4 I end;# u8 }1 s5 g- N( p( s
(2) while <condition> loop, J. z! C( }9 K* T9 s: v
<statement sequence1>;
" T- v4 o: G3 C# `& M- |' z1 t end;2 V* A6 ?, y/ ?4 Y- t( k
(3) repeat
1 [6 ~; t0 k6 }: U" [1 j8 W8 s <statement sequence1>;: {5 r _* A- l, Q
until <condition>;$ q2 \' n+ I5 S! N b$ M2 h- K: _. W
(4) for <condition> to <condition> loop
x, I8 K( Q$ x! @$ [) `4 d <statement sequence1>;7 j& i% M1 j x i7 d: p
next;
5 r" {( }$ _ R T# ?: j# E3中断语句9 t! P. x- j8 W& i9 b- n
waituntil <condition> prio <integer expression>;
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a8 [% k2 P" s( A! |9 {/ \以上为常用的函数！2 x7 ~; ^6 l, q9 a
还有很多，如有需要我把资料发到你邮箱里
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