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发表于 2012-11-13 08:48:12
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1判断语句# i& F D% D5 W$ v7 k
if <condition> then
: ?2 s2 M& Q7 x <statement sequence1>;& c7 v4 J* L5 d' `/ N4 p4 u( ~) ?
elseif <condition> then
$ i3 N) ^8 h' x% d" n <statement sequence2>;9 {# G8 r/ B. w ~5 |/ {3 E7 `
else 8 K) O( x5 H+ S9 y3 r* @* p
<statement sequence3>;7 |8 E! N& _6 d0 C& n. q
end;
1 d3 Z% I4 y' g9 q* `如果分支比较多,用:0 r" Q1 t* @) D! U8 g1 y8 c8 V* S
inspect <expression>0 n7 }4 t+ y/ c7 X
when <constant_list> then& W. Z5 T7 e( F9 k
<statement sequence1>;* i6 s, Y1 {+ q
when <constant_list> then
/ f3 X+ y8 R* D9 r/ y# B <statement sequence2>;
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else
, i1 l& H% P' Q4 k+ C: G. V <statement sequence3>;" j* e4 x4 Q0 V& B3 U! N
end;' F/ k: [9 O9 ^( K' \. H
4 |& t3 i1 O0 R% a2循环语句
+ q2 x: @5 m& S (1) from <statement sequence1>% j8 i0 C; Y) H
until <condition> loop
8 a2 F+ | l* f. C/ g0 A0 @3 } <statement sequence2>;
4 D i8 D( \7 z7 Q; c end;
$ z7 _& `+ x$ u1 m& e: n! b (2) while <condition> loop# b+ x# k) m' y% g# @
<statement sequence1>;
3 o" P9 d2 S' J! P( t4 o& S end;
! B& Q! ^% ~* F" X (3) repeat , l h! T0 Y3 W7 A9 f$ j4 A( u
<statement sequence1>;
' g F* k+ b9 x x until <condition>;
7 v7 J+ Y1 }( k6 r* @ (4) for <condition> to <condition> loop
6 e0 V+ @+ y4 N9 w# k3 z <statement sequence1>;7 j2 @2 I7 S- ?) o& w0 {' w
next;
8 r& r$ B' t' H& F7 t8 |3中断语句1 }; X- ^0 ~, ~
waituntil <condition> prio <integer expression>;
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以上为常用的函数!
' h3 X; K3 y" m( Z' [9 @* q还有很多,如有需要我把资料发到你邮箱里 ! o- P, l \) Y8 D8 |
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