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发表于 2012-11-13 08:48:12
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1判断语句
9 V( s C0 A) R/ J if <condition> then
$ R& u: K$ m! y9 b <statement sequence1>;
" |3 F/ j H5 D$ {' B3 P elseif <condition> then: y3 p% D* p! e( Q( n
<statement sequence2>;4 ^7 j* s0 J8 [- e1 e
else 6 ]3 |& ^& Z- k+ ~
<statement sequence3>;- _( f3 v2 s! S8 ~7 Y c
end;6 @* s1 m- H0 ~3 C
如果分支比较多，用：
6 k. s/ c9 m4 d7 L% W+ o inspect <expression>
. ^: ^7 L8 W5 n when <constant_list> then' H( Q& l! W: F$ e
<statement sequence1>;
& ?8 }1 ~: M; e when <constant_list> then' B# V& m' T" c& C: s
<statement sequence2>;
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else& @- x( G5 W% B$ j* x/ n
<statement sequence3>;: I3 M) N2 ^3 A8 i$ }" L4 i: d& s, B
end;
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* u! e M# R" \2循环语句2 z3 l2 e0 c" z! D8 B: p+ t+ `
(1) from <statement sequence1>; ^. T( [; B4 k1 e
until <condition> loop
: X' b: q) ?$ Y9 L <statement sequence2>;
: u* ~8 `- A8 Z) H7 B end;5 g* | |3 b8 s5 t8 m
(2) while <condition> loop
) `. K6 w) e4 v" K+ m# \ <statement sequence1>;3 p9 M u7 U4 D+ {, X
end;0 i1 J0 _0 d" M+ F- D y
(3) repeat
3 V# n' K7 G, C) b1 d <statement sequence1>;0 ~. k6 m5 G: f
until <condition>;# M* {4 t$ k T# y G3 s
(4) for <condition> to <condition> loop) L" S) w5 H! |
<statement sequence1>;
' x$ i y, I' ]. S next;5 [$ T2 L% P- ]5 S7 w( J
3中断语句" g; a, [, q: a; c
waituntil <condition> prio <integer expression>;0 X5 H( S. X* q1 u% |! v7 E
3 r" K; h' l4 A7 }: Z( g
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以上为常用的函数！
+ s& L$ L, y0 c4 X- ^+ N还有很多，如有需要我把资料发到你邮箱里 2 b: Z) ]% O1 O" L7 f/ Y: H8 K4 @
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