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发表于 2012-11-13 08:48:12
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1判断语句# Q! ~$ N9 P$ V% [
if <condition> then# G, Y0 y" f! @ C5 {2 p4 p: f( |
<statement sequence1>;
1 e2 Q$ t) z2 d9 e elseif <condition> then: f& \# Q0 W0 \+ N- o
<statement sequence2>;' D G0 h$ {7 R0 N
else . M6 Q& _6 W5 ^2 P
<statement sequence3>;
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如果分支比较多，用：0 D9 H& S! z4 T, Z, a; Y+ [
inspect <expression>. _+ l( G8 ^2 G2 R* }
when <constant_list> then
" Q6 M/ S; A- @ <statement sequence1>;% X3 R$ O2 |! K# d' e7 `0 U2 _
when <constant_list> then8 _- w0 J4 ^9 X* O5 j/ z# N7 Y
<statement sequence2>;
+ b; a8 b4 T6 l4 z3 m. l* N ...
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<statement sequence3>;
% V' L8 U' y) h) b% Tend;* n4 N# I, J6 y/ y
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2循环语句% Y" a5 k4 ?5 E/ y( O* A6 y
(1) from <statement sequence1>& p: m4 s' a: H
until <condition> loop% K. o# i# ?$ W1 u# i
<statement sequence2>;1 U! y9 t0 ~+ o. Q: C) @2 D
end;: ^- R, v1 ^4 {( u: \7 q
(2) while <condition> loop1 s# {$ Z! x0 k, E
<statement sequence1>;
: `+ c; `* I( T5 r1 |% O% t end;
; a" u) r+ O( h% O (3) repeat & Y* Y$ J( G {, _3 g2 O, ~9 _, \
<statement sequence1>;6 g( a$ _( {! w) r# Q4 H
until <condition>;# A4 d3 _! o% \9 k
(4) for <condition> to <condition> loop9 C. G# O/ J7 D6 C
<statement sequence1>;1 h; n7 ~3 e. O/ f) A u1 s- R" i
next;0 E) j, g2 ~# R9 r8 D1 e
3中断语句
! N [9 y, E. Z8 c: j6 X waituntil <condition> prio <integer expression>;8 @5 v5 `: m c( @. Q
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以上为常用的函数！
& q, s/ ^2 ]' X- K s还有很多，如有需要我把资料发到你邮箱里
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