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发表于 2012-11-13 08:48:12
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1判断语句* e5 ^3 l# F& r ]: C
if <condition> then. J- ]/ K2 B+ q) V1 O! ~4 ^
<statement sequence1>;- m6 o$ c8 v) b' j- I' D
elseif <condition> then
$ |8 Q* ?' ?8 Y( y <statement sequence2>;
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<statement sequence3>;
3 m& R+ y; m( a9 a$ q end;
' f% W* s# C; q5 S如果分支比较多,用:
* g. C/ t6 @3 K inspect <expression>4 G+ ?, V5 L/ @* z2 R7 t3 u: m
when <constant_list> then( r0 m1 s! Y# m) C+ A) r- o Z
<statement sequence1>;
7 N+ k5 r1 z- P$ _) y when <constant_list> then
$ Y) j; g: \6 a8 |- H <statement sequence2>;
' J( H3 n* ]4 o' V' _: A2 j8 c0 i ...
; W. \- ?; U4 {/ K2 y else) N/ e: l7 M5 `. o- s
<statement sequence3>;
; k/ i i9 x+ h! Vend;
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6 _4 J/ I' ]2 @- m! m2循环语句; `' J" b; {8 S. j/ \
(1) from <statement sequence1>- G c: T, y5 }
until <condition> loop; ?' t7 a1 `/ S5 a6 P" i! E
<statement sequence2>;6 t9 D/ |, V2 i
end;
) ^7 j" k" ?1 v* d/ Y+ O$ a5 s, y (2) while <condition> loop
- j/ q/ h( f/ E/ m/ b <statement sequence1>;( [) v) d5 ~/ ?% f2 `# |$ J
end;4 {5 q9 U! t( t
(3) repeat
7 X/ e+ H0 w& d2 D <statement sequence1>;
' G. e+ w l; I- E; m: }) L until <condition>;
$ H+ u' `% ?+ _' s' }& [ (4) for <condition> to <condition> loop g! y9 [( n* v( R
<statement sequence1>; Z, N$ {2 W e
next;
' c: }5 \. ^4 |8 N7 s" w( a! I3中断语句
# P' {2 K. c& | waituntil <condition> prio <integer expression>;) I/ {% {6 H5 d; B" L
7 P/ U( _! `! H$ }* P X5 e" y4 o
8 l- n; H$ @1 Q% [' R3 O5 b以上为常用的函数!
: b( {3 d9 r& x |! X a8 y5 P6 B5 n: @还有很多,如有需要我把资料发到你邮箱里
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