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发表于 2012-11-13 08:48:12
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1判断语句7 I* J7 t# s* W# s& [
if <condition> then7 h6 h+ V+ E' O5 t& p0 H, i
<statement sequence1>;
: ]7 \9 S- @3 y& ~7 M elseif <condition> then8 W1 B/ I) x+ @! C* u
<statement sequence2>;8 l( M! o0 S4 B; s
else & N. w' U( P" e: |
<statement sequence3>;) j/ Q& S# G) q1 Q
end;
) n7 v( A4 S! g) D& k如果分支比较多，用：
7 x) L ^' D& m% a. ^. L inspect <expression>
6 N" H# t) H9 P) d6 T. n% t when <constant_list> then
9 p/ K/ _) t& J <statement sequence1>;
8 ]) n' n, S* |( v4 n when <constant_list> then
8 s% u4 P+ p! k/ u; R3 h <statement sequence2>;
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else1 F7 ^* S) D' J# K9 W- j4 i6 [
<statement sequence3>;
+ l) P" r. j& q& g! p( |; v9 Eend;; q5 r- U T" ?4 ?' B
6 L- h# l- [2 b4 ~* E6 h2循环语句
7 O0 c3 s- G2 p (1) from <statement sequence1>! h8 n( s R R$ r# t
until <condition> loop
0 W' K, X# j! B+ x6 G <statement sequence2>;
% R) Y& j* ]: |% T. M end;
0 x0 {* G% j* X) d( u (2) while <condition> loop. w/ h9 S: L# Z/ e' x$ }
<statement sequence1>;
$ b4 g7 {& r+ p& @* l$ r end;
8 k4 K5 \# P% I7 {) J (3) repeat
2 u1 ]$ H" T' N5 v3 h <statement sequence1>;6 t1 K7 \7 V; Q1 ~, E: Q* Y
until <condition>;: `" e' n( h. F" a* K
(4) for <condition> to <condition> loop
% G- u( w# d2 U1 K( x z <statement sequence1>;
1 @8 f5 [; Z+ P: C7 r7 G next;6 C( }9 x! F, ~. |
3中断语句
" w" ?& {: W2 o8 X) Q5 h waituntil <condition> prio <integer expression>;/ c+ b8 d3 }' Z/ @7 A5 Y+ s
" R: V. @, K0 Q& J3 Q
" X5 O9 Q3 Q/ c0 C H以上为常用的函数！! ]7 [! W! O' ]* S% E
还有很多，如有需要我把资料发到你邮箱里
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