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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
! m, t3 j- V* X6 F0 A' h( X9 E8 o if <condition> then
% P0 L0 u7 H# w0 S <statement sequence1>;
0 @7 {2 ~& b; a4 I' w, s elseif <condition> then7 A! p4 d1 e) w( V4 P; d
<statement sequence2>;
) b7 a' L, T) ?& ~* v" n else 5 _& k8 x; q5 b' l! J0 O0 A I/ T
<statement sequence3>;
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如果分支比较多，用：
. Q( Q" Q8 a; Z' C# i* q inspect <expression>
% Q9 B" U( r+ u2 {% v+ q when <constant_list> then
- }, y- F3 E. S# n8 ]8 E( j$ m1 O% @ <statement sequence1>;: d g+ e3 {" d5 A% A; \; R& V0 N
when <constant_list> then
7 H3 M/ I# h% h8 r" f <statement sequence2>;
. c. ]4 ^+ n8 e7 ]; D# ~3 l9 d ...
1 I3 a4 j; h9 A7 q7 T" L' ^5 q else
9 w1 u' l# P( X# ? <statement sequence3>;( l8 c& M4 E$ q% ^
end;
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* E0 Z9 G* M( _+ Q5 I. h1 ^5 m2循环语句) p3 W) B2 U+ G7 ?
(1) from <statement sequence1>
& Z7 V7 }1 H; ? until <condition> loop6 Q |( `' M3 N( ^" |# i
<statement sequence2>; p! n2 n, f5 ]& v
end;5 s9 C! m$ A8 y2 \/ E3 W* B4 [
(2) while <condition> loop
" D6 H) S6 ]9 ^* C& y1 C. e <statement sequence1>;
8 F% t) _+ X e end;" u: m' T3 ~& I( G. k- {
(3) repeat ( R; u( j' [: l8 }7 |( P
<statement sequence1>;( D1 N$ s" D7 o% x3 h% E: _' }
until <condition>;
8 m. C: ^' A9 D5 I1 | (4) for <condition> to <condition> loop
+ X! a0 D+ l+ j8 H+ I6 a <statement sequence1>;, Y# e) C2 c; Z
next;: d7 |2 s4 z; n) d9 i" U
3中断语句
( G e2 G F* t& |1 ~4 ` waituntil <condition> prio <integer expression>;: Z2 x% v# r8 b! v- A
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以上为常用的函数！+ x) X$ E; i4 B
还有很多，如有需要我把资料发到你邮箱里 9 k+ O% S; f, c* q. c
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