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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
0 I3 p# ]3 l3 S( a if <condition> then8 x; t7 q+ T) z, P ~+ E9 g
<statement sequence1>;
! E" |- |+ Q! A6 ~. q elseif <condition> then
% L' |# r+ x% l9 R <statement sequence2>;
2 x% P1 z3 q* A& r! y% r else
4 A" `% ]3 x5 z0 T <statement sequence3>;
& W p/ Q- A* X& Y! T' q, | end;
- F; M" c9 W/ Z5 v( }如果分支比较多，用：
0 p. t" {) {1 U inspect <expression>5 p: F' T5 O6 k. I M$ R
when <constant_list> then) E0 B9 B( k, \2 Y! @3 D6 a4 w: s5 w4 i
<statement sequence1>;" A! x. c7 i# B+ Y
when <constant_list> then
4 t( G" {1 v# M' S6 {% i1 N& i5 c <statement sequence2>;* c, f0 y0 K* C0 V* k# z
...$ U: {+ Y h' |8 m1 E( m( v+ c
else
; H5 x4 d9 c2 b8 Y7 c1 d9 K' r% { <statement sequence3>;$ J9 l: W9 ]+ Q, l' i; a* [2 U
end;' @: f$ @. ^) _8 v4 n p* _$ z
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2循环语句% l% v2 P9 ^7 F( B8 e, `
(1) from <statement sequence1>
, |( _, Y* i8 T8 D$ p7 b until <condition> loop
- i) B) P3 c+ T5 l! }, L <statement sequence2>;
3 e3 R s" [8 D- H3 ?3 w# X/ t end;
! n# u9 D) Z. ]% T& @4 { (2) while <condition> loop ]# _# a/ e! t2 b; c
<statement sequence1>;
8 B7 }5 N, d$ c% T% L: l( u: w end;1 X5 T8 Y% ?. Q* [. P, F
(3) repeat
2 ]5 B" U/ _$ r <statement sequence1>;
8 g, r. l- x9 V! C, F until <condition>;7 B4 R" X# j1 t3 K% l
(4) for <condition> to <condition> loop) f" I4 F5 w' I7 i0 K4 U
<statement sequence1>;
6 p0 g8 B. }7 x( s$ B$ Z next;
! @2 k$ ]3 v2 j6 r6 y) R% L3中断语句7 j" C# d; h) N& h+ ^$ r
waituntil <condition> prio <integer expression>;
$ y! X( U+ u! }9 ]& q) j- x" Y4 T) A3 u
q5 w# P: _% A6 Z; y L以上为常用的函数！: o5 r0 u [1 O( {2 t1 |' A
还有很多，如有需要我把资料发到你邮箱里 . ]# w- k& {$ E8 \
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