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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
+ J5 R9 b, _+ @3 J* A, d; @ if <condition> then/ [) @+ B+ u: y; Z
<statement sequence1>;
/ @0 K }9 a4 s" t) \& V elseif <condition> then
+ g4 K; C* ^5 ~5 l: J7 U8 q <statement sequence2>;
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<statement sequence3>;. u H7 ?- K* c7 z+ {
end;+ l" l$ \- U: a* C: [
如果分支比较多,用:
2 n# Z3 p, o- E. x inspect <expression>- N. W$ u* @0 W, Q1 N7 _5 t- \
when <constant_list> then) U" ?6 k2 j4 k$ o
<statement sequence1>;# ^2 Q$ E" P2 |8 n
when <constant_list> then* _, K/ \% S- \1 X# U6 p
<statement sequence2>;
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else* G L( t8 ]- z7 Y& H( A) i) j- h
<statement sequence3>;
8 h7 g8 `6 ~3 y) C9 }; Yend;
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2循环语句' b/ c( u. `7 D8 G
(1) from <statement sequence1>. r( X6 q$ B8 G3 Q j: [: q
until <condition> loop1 `, A; e2 X3 _3 M) u
<statement sequence2>;
2 u0 T/ F5 p$ G8 @! l" z% \ end;& l& u% n/ E) W! y
(2) while <condition> loop
- G* R4 b" h4 I1 W6 l1 B <statement sequence1>; s' X' H- m$ d
end;
3 D: C8 }# N* d; n) J6 Q+ C (3) repeat
- ]+ j+ Q% r: G N% E" m <statement sequence1>;. ~) K+ D) h7 U$ `
until <condition>;9 b5 r7 E* S0 h, H3 {; i- H7 C1 x
(4) for <condition> to <condition> loop+ H5 R& l" B) R. `/ i' k
<statement sequence1>;
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3中断语句+ l% E& z4 _: o8 }! V$ E( T! ]
waituntil <condition> prio <integer expression>;
q; Z3 X/ \" H! c0 R8 F% X- E( V6 q+ a! a9 i8 N+ k
" S! p3 I$ D' f+ i) Q以上为常用的函数!
$ `7 x. \ t( v: ^3 m& ?还有很多,如有需要我把资料发到你邮箱里 6 ]- U) c0 Y# O; X# }" x' n
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