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发表于 2012-11-13 08:48:12
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1判断语句' J3 |2 @! q, V8 I6 c
if <condition> then J' u7 _' C* A7 q9 S1 M( w1 P
<statement sequence1>;1 _4 z4 l* |& [
elseif <condition> then
" L% {7 g& r9 \7 w; Q <statement sequence2>;
. I4 P3 ]1 |$ }0 B' s' X: N: d: G else
- C0 K0 \0 H; K2 }8 i' }2 f <statement sequence3>;. T; N+ R4 i- F4 ^4 Q
end;' s! {5 A! u' j! j
如果分支比较多，用：
8 h+ C0 R, s: o) j; e$ @ inspect <expression>8 O# B( a+ |) H6 Q+ d7 {$ y& T
when <constant_list> then
# Y8 M$ ]0 W) o: y2 D <statement sequence1>;! p: E/ N: F9 [# l
when <constant_list> then
( _3 k3 B8 d* _+ K <statement sequence2>;$ ~9 O! C- \2 ?
...
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<statement sequence3>;; I- x- r! C4 l
end;
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- ^( m, p, |2 L' l! v2循环语句$ ?# G }* F- \3 Y$ r4 a2 T
(1) from <statement sequence1>) m1 v% c( r' A1 o1 H1 n
until <condition> loop9 C- w* ^& g9 O* d, \
<statement sequence2>;
% N2 H( d! \0 |5 Y% Z end;
, F0 g6 |! I8 a$ {8 h* A, s (2) while <condition> loop9 R' J# j3 a1 [
<statement sequence1>;
& L9 U. }0 c P, B* D! G& d/ X end;* ]/ q2 Z& h' H8 ]. x
(3) repeat ( Y1 N; v, I6 \/ P
<statement sequence1>;) E$ r6 G9 d# ?# k
until <condition>;
# B/ u+ a& m6 l& o9 s* F- X. x# | (4) for <condition> to <condition> loop
, w7 q8 M7 [5 U( _: T n <statement sequence1>; e3 c j: s2 v1 z/ ]5 [
next;. M2 G) {# U( ~8 j. x1 e% z1 t; O2 ?( k8 Q
3中断语句& s$ q4 G. h5 @: x
waituntil <condition> prio <integer expression>;& B" z: j6 O2 l: ~( e3 `
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以上为常用的函数！
% M- z5 U" N4 a% }% K S还有很多，如有需要我把资料发到你邮箱里 ! z: }( y1 U$ b. N& L6 n. T
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