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发表于 2012-11-13 08:48:12
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1判断语句
4 w6 C ?& f' z( F2 Q if <condition> then
; z0 `6 y6 u& d8 M \ <statement sequence1>;
. R4 i# a1 \+ I4 } elseif <condition> then
1 ?: h, ~6 n0 s0 a& h% f* t <statement sequence2>;& M# X& m: `3 } i$ s
else
) d u" i( Z/ Q' F V <statement sequence3>;
, A1 H5 S2 [. I end;
4 u" b9 j: V- d3 w- ^如果分支比较多,用:% u8 Q" B7 M+ I9 ^0 X& M2 D2 L+ G
inspect <expression>/ F; N, B5 @1 z& h! e& F( B
when <constant_list> then
# W& u! O6 D3 [5 O7 { <statement sequence1>;
2 o6 j# X, i7 w# x5 ]' S7 C when <constant_list> then+ {5 }: T' h6 S1 b
<statement sequence2>;
/ D: x& h$ K. ~ Y- Z1 H ...
0 Q% ^4 I7 X- g; a9 m else
. E5 G+ W/ z) P6 z5 N" y* x, I <statement sequence3>;
0 j- V& P; B$ aend;! S% v; Z$ \; Q s9 X) b4 G0 D
6 G" ~" f4 p/ d$ {! A* A R5 f2循环语句7 B- ~0 ]0 y+ n- \) A) H$ ^
(1) from <statement sequence1> L4 D- H2 {' [6 w/ c- X F! |0 d* j
until <condition> loop5 n: Q" E! R4 Y: S. P r
<statement sequence2>;. Z+ A) {/ U N6 { F$ j$ o
end;) p+ P' L% [4 ^: j1 X
(2) while <condition> loop# H# u* i% [$ {- G$ i& ^
<statement sequence1>;
" u8 z. o- p7 g: ~. k9 O end;6 D: c" J5 N4 T1 m
(3) repeat 0 z9 ^4 r+ L. \6 ?. k
<statement sequence1>;
8 Q* F ^' M; K U# _, A6 h until <condition>;
7 S# ^* p7 _2 ^3 C, | (4) for <condition> to <condition> loop. i0 ^$ R& l% R" I7 Q8 a
<statement sequence1>;* b6 d3 V" j6 d6 `( n: N" m
next;
" ^/ ]3 h$ D- q7 G* g9 {3中断语句# l" g9 g. y2 K2 L: A
waituntil <condition> prio <integer expression>;
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7 J( z3 T* _" A0 B) ^: |8 {( i* Y ~: c$ H
以上为常用的函数!* W8 q" @' G# J J
还有很多,如有需要我把资料发到你邮箱里 : t w! S# u7 v7 }7 E2 C p& R
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