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发表于 2012-11-13 08:48:12
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1判断语句$ o W, X5 ~7 ^1 P/ I& E
if <condition> then* h. u1 j9 Z$ W) _( @3 R3 W! z
<statement sequence1>;/ n$ p8 V$ i* A3 R# _: [! |1 C( ?
elseif <condition> then3 C5 {' k1 P4 N' Y5 W% }' [6 c$ T
<statement sequence2>;
! r4 G1 a2 e' E' Y. J$ r: ` else
. ^% Y$ H1 k+ W) E, h <statement sequence3>;% A8 V [8 I' o+ s4 {2 C& ~! t/ z
end;
( L6 t- u9 \# j. Q5 X- T如果分支比较多，用：
' G m, c& O- H" F inspect <expression>1 c4 r% q0 H: ^* F7 L. j
when <constant_list> then
0 r8 F9 d; l, z9 U4 I <statement sequence1>;
3 G1 v3 E9 c7 E3 r/ v* t6 x# @ when <constant_list> then& Z7 }+ O& ?5 Q* n
<statement sequence2>;9 z! @5 s2 ~% |# k& l D
...2 k& l9 |8 D0 G1 j- |9 u
else+ Y# I/ `& H/ I5 V, w; y, z% M! r
<statement sequence3>;, _ Z3 ~# T- \# R* h2 O
end;% r j) ~. p3 |& d5 z; @% C
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2循环语句3 o8 N& O) y: U6 B
(1) from <statement sequence1>
. F% H! g4 j' V( _/ n* ^/ Q until <condition> loop
8 C g$ Y2 p+ `! K: m# {# [ <statement sequence2>;' D: b8 ~: i4 u; B
end;
" M" X) ~9 h2 e (2) while <condition> loop
7 w9 I4 m5 S) Y# p$ B# {2 A$ D <statement sequence1>;1 X9 ~& }% k: ?2 v- C- O8 K( m; s
end;
: B7 ~7 _& L* t (3) repeat
; s+ G7 }: |% ~" m7 X, L9 m8 L* { <statement sequence1>;& H0 x& ]5 J/ F- O! M2 z
until <condition>;* B4 @% N. E$ L( u& w: _: [
(4) for <condition> to <condition> loop8 \+ ^7 p: h: w: E
<statement sequence1>;/ i. `4 I) [8 u) w0 o1 v
next;
) k4 l/ o* l: g, s" L3中断语句6 p: o+ X( c6 c! v2 g
waituntil <condition> prio <integer expression>;* c p/ A; w- S
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以上为常用的函数！
z' E2 {. K6 D& P还有很多，如有需要我把资料发到你邮箱里
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