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发表于 2012-11-13 08:48:12
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1判断语句
. q8 O# }9 y3 V+ \( W if <condition> then
4 I4 ~& l! P' g" ] <statement sequence1>;
- i! u9 L$ W; ~- }* ?, ^1 D- H0 I% i elseif <condition> then
1 Q+ {$ c: k1 p. a2 D- D9 G4 E& w <statement sequence2>;* u2 _7 s0 F4 A$ a
else
& E0 e2 ^4 q7 ^! R# b <statement sequence3>; v, u$ U7 e( T! I1 Q
end;
2 T5 f* o+ a# C B6 S: b3 U如果分支比较多,用:
2 t M* N. d, V+ a6 o" w+ Y N. d& F+ c1 A# e inspect <expression>
4 @$ f* q# c, j7 H9 E) v when <constant_list> then
% h' B, ~6 N N; v& t8 m. U <statement sequence1>;# F7 A7 H' S( p/ j
when <constant_list> then& T; ^1 T0 x6 L$ ~
<statement sequence2>;% s! w/ [, N, U( {
...
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<statement sequence3>;
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; X$ A0 R' R# C" |2循环语句
" j$ E& p4 `$ P. e, a* Q (1) from <statement sequence1>
7 L6 p1 B" \2 |9 J8 n/ e& d# X, W+ h until <condition> loop
2 N! z7 {' [6 C$ y O8 g <statement sequence2>;! ~. s; S6 l- J, q+ V1 K
end;
s3 D, z& t8 n* R9 \4 i& q. D (2) while <condition> loop+ o1 p6 ]) h7 p1 e
<statement sequence1>;
& v& B0 ]( W% t end;* R, M2 O( l9 e8 R! r
(3) repeat 0 t; I; n1 q0 `, [+ f' P: R
<statement sequence1>;4 K$ H7 R- u/ i0 T& ]1 F6 F% `
until <condition>;
$ ~2 d2 ?/ Q8 F' U (4) for <condition> to <condition> loop' ~; c8 v, [/ }2 ]4 |) U: n# O
<statement sequence1>;
# u7 O' u8 @2 i; q5 c! T c* Q next;
7 e* [. f0 t( P( P7 H r3中断语句 D8 m! x, _/ ~
waituntil <condition> prio <integer expression>;
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8 h* T: g: y; M# B
以上为常用的函数!1 G% v# C# H! A# B: Z
还有很多,如有需要我把资料发到你邮箱里 ; U& Y5 }7 K2 N; K
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