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发表于 2012-11-13 08:48:12
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1判断语句' j4 A5 W$ i1 T+ `% E7 U) v
if <condition> then
# P" E& M+ a( w8 Q1 { <statement sequence1>;/ k) o$ t2 s9 F8 y8 N3 e
elseif <condition> then8 u* A/ v2 M/ A! N. H% t6 a
<statement sequence2>;( D, G. T; _! k1 H
else
' z9 D* W4 T: c J <statement sequence3>;
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如果分支比较多,用:
4 p6 {& |- F5 [, d, m; s inspect <expression>( i3 h) d/ L- i8 G6 H: n1 d
when <constant_list> then
( k, _+ {% N" p& ` ^ <statement sequence1>;' i# p4 ]0 U6 ?+ I o) u5 @3 ~6 V
when <constant_list> then
9 q& @$ o- q7 N% A' R <statement sequence2>;
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4 m: `3 R/ i! Q( R2 L1 w$ u else
4 m" x$ ~3 R% z <statement sequence3>;
" g- c6 Y* E2 D$ ~0 `, s4 qend;
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! X% H- R# Y R6 R5 N; @2循环语句7 C8 n% t0 e& O4 Y" L$ C
(1) from <statement sequence1>! v- `5 b8 x( N; R6 ?$ J0 q) W
until <condition> loop
% Z) H* Z' x" o, w <statement sequence2>;- ^0 Q3 `# w" m- h5 A, `. B
end; [) j" _! @: y P4 G ~4 x
(2) while <condition> loop
/ l' ~0 b8 j. D. ? <statement sequence1>;3 s; L4 i. u+ K' P( K+ x: g
end;
. K( t% M; |% L0 m! w* \3 g+ G (3) repeat : ?! M+ c/ p4 L9 Q, v
<statement sequence1>;% n5 B* ]7 t* p
until <condition>;
( s7 y' S6 ]) L! C) A (4) for <condition> to <condition> loop R$ N5 }8 @ k% p# Y
<statement sequence1>;
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3中断语句
& r0 W: z, n. {$ T waituntil <condition> prio <integer expression>;, u, Z4 {4 s! n w% H' G4 q
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以上为常用的函数!; W/ R/ j( W5 W: J5 B
还有很多,如有需要我把资料发到你邮箱里
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