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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
' {. H, X. S% @# F( P if <condition> then
+ Q$ P$ N' M$ T* d( R: W' D <statement sequence1>;
0 ^, |: _* t7 a5 y9 \; r elseif <condition> then& E& e9 @/ Y3 J. \2 i
<statement sequence2>;
/ ?+ j- U- o$ r) x else . q0 E" X2 A" k8 K5 }* ^
<statement sequence3>;
" ~$ S6 s- G Y7 N7 o5 O7 D end;
$ v0 D1 x+ A0 q B5 s7 O0 ?如果分支比较多，用：
6 G7 z) L+ n# @# Z- A inspect <expression>8 t! ~5 Y2 Y/ ?* d O) w% }1 s
when <constant_list> then \. i4 p0 d+ o. u$ V! a8 y" S
<statement sequence1>;8 E( s0 N; m5 \" B
when <constant_list> then
% C* S: m9 B4 e$ V o& P <statement sequence2>;) a! G+ X& ~; K. p
...! } z3 s( {' h, C
else
) D" ^4 M) l6 r! S0 M0 \6 _5 U6 o7 D <statement sequence3>;! i3 H& z* ~* E3 W4 [
end;' j/ M! O' D, ^
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2循环语句1 L# E6 |; D, b5 |' {# s+ [
(1) from <statement sequence1>
5 Y2 i# V1 j. Q5 A until <condition> loop( Q- }2 _! I. l/ |+ { A. y
<statement sequence2>;* h i4 x3 a$ E
end;9 j% y5 w0 R( ^. e3 V
(2) while <condition> loop* ^6 k% {' k; Y
<statement sequence1>;' ]* i1 X+ Q* R7 h% f
end;: z3 l* g3 P6 x8 c* e( y! p' s/ h$ ^0 r
(3) repeat , ?' ^: {+ p0 f
<statement sequence1>;) y1 N4 C3 T: Z* N
until <condition>;" Z! I1 K: R5 n
(4) for <condition> to <condition> loop
. o9 _$ \* a' L" I/ r <statement sequence1>;4 F( S; ]4 P2 {+ A/ F
next;8 B* H# C6 G+ J' a
3中断语句
5 U! k" h" C5 I" |* i8 W. c1 X. [) f waituntil <condition> prio <integer expression>;% S F$ K7 Z/ V
" i" S& k$ i4 Q% }
- @: z* u" L. @/ e6 G/ n! s
以上为常用的函数！% I) z! o5 v) _# H0 ?% E& c
还有很多，如有需要我把资料发到你邮箱里 " T1 H$ U4 |( M- }# M) ?+ i
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