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发表于 2012-11-13 08:48:12
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1判断语句" G+ D7 X2 A ?# Y% f! Y
if <condition> then# A5 J3 {: V( P& a# ?9 I
<statement sequence1>;
1 ^, G+ Z, y/ j! T# g elseif <condition> then( o! V7 B* ]8 ^0 ~, u
<statement sequence2>;! u( m# w4 N3 ~7 Y) `
else
( ]- F6 W- ~" M. q) C5 [8 ~, z+ R <statement sequence3>;5 b5 e5 C. L% e6 }9 S
end;4 m6 I" m+ b; N X/ D2 E2 F0 k
如果分支比较多，用：
9 U# u4 ?$ p4 o, ~* ?+ e- d3 {, { inspect <expression>
9 U$ H9 @/ E0 ]5 _2 S when <constant_list> then
, {/ V, R0 y, ]! V! b <statement sequence1>;
! x7 U& ]/ \9 t3 G3 A when <constant_list> then
0 s, c: Q$ ~4 p5 t- O/ ~ <statement sequence2>;
2 j& y* n8 W* d2 ~3 z; m ...
) A3 m7 b) ~; E$ h5 k) o1 l- s else
& l1 ^1 R! J4 U9 D; L <statement sequence3>;
$ q' ?! X/ R2 qend;
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2循环语句; U8 o. p/ {' f- U u
(1) from <statement sequence1># y$ k, ^# g& M$ T! C- d' b l
until <condition> loop
N7 O" \/ k# S3 ]6 s" m) R; Y <statement sequence2>;
4 p& ~# K$ @2 w4 l; W3 h5 }0 C end;( Q9 O' x% M9 m+ u7 b
(2) while <condition> loop
+ A/ ~$ j1 p, Y$ K' f, _5 X <statement sequence1>;# t# \# S/ V' D2 ~: w
end;
7 [5 k1 z( t O7 b# k (3) repeat / Q9 O! e! Q6 L T0 u, ~( {
<statement sequence1>;& \/ f: I5 i: w5 `% C" E. O& L
until <condition>;6 u, {0 P/ [2 S9 `1 E. p
(4) for <condition> to <condition> loop
$ V. t, R* g8 v. m <statement sequence1>;
, ]* ?) F. u3 r8 b next;
, F: T: A! f- X4 @3中断语句
" z, `0 v2 W% s$ Z r waituntil <condition> prio <integer expression>;
8 N) F' A/ i0 ^: I, y0 [
7 J2 @2 a! t- c" {
) H9 C3 |" _4 i. ~, c8 z; ~- i以上为常用的函数！
) q' n* q) @# s9 K/ J还有很多，如有需要我把资料发到你邮箱里
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