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发表于 2012-11-13 08:48:12
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1判断语句+ K2 { M+ |6 J; h) \
if <condition> then2 `1 F# v1 M, V) k( R
<statement sequence1>;) Q) \7 E! R9 D) b6 `: k
elseif <condition> then
, I6 J9 K7 Z7 N <statement sequence2>;, r0 S$ k: q5 O+ l
else
: o5 t+ h6 s' W; T \ <statement sequence3>;: V6 F, [8 G& Z5 N1 `. k# f8 c7 t
end;5 m+ Z1 ?0 g6 {* [
如果分支比较多,用:2 \4 N1 g$ [/ F/ V1 A2 A+ Y
inspect <expression>
) R' [, v3 S" M when <constant_list> then
1 k1 `- o% P7 B) p. Z <statement sequence1>;
' G& T+ f3 u. P( y* v% \ when <constant_list> then
1 H. l0 p" Q+ u6 g9 } <statement sequence2>;/ ?" c" R2 D5 \& k+ r+ n9 K) M: b
...% _2 J& |9 B" c M+ ?' R$ e% r
else: D! }" | P- x: n% \
<statement sequence3>; ^4 x2 o. f6 Y) D$ z, O
end;
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% _' N: z, Z9 j; p# M2循环语句
5 g4 j$ c( m- m0 y( J4 Z# b1 g (1) from <statement sequence1>
6 d: x. h5 y& Z until <condition> loop/ C( M5 _: E+ X. h1 H& I
<statement sequence2>;
& C/ |/ Q9 [3 K! ]7 ?8 S0 S end;
; U* _7 P3 U' E$ C; x (2) while <condition> loop
, R% K; Y: F. e4 ^5 M. Y, ~ <statement sequence1>;
" R+ @, D! n3 b5 o end;
9 I% i8 t3 B) z m1 M (3) repeat
9 S4 v5 o$ r* _ <statement sequence1>;
: X& X+ |1 h* |6 g, J: e until <condition>;
; D3 Y4 Q: |8 F (4) for <condition> to <condition> loop
, H1 V! P$ P) p! R) f7 x <statement sequence1>;1 }$ p% Y4 I& t$ R
next;1 g: P- u) R* ^5 V: ]" l/ g& ~+ u
3中断语句
% L- W: [4 k6 I- r5 t4 _3 z waituntil <condition> prio <integer expression>;
" d: j: {$ `+ h$ h$ v* e% i8 F) w( s/ D- Y; z
$ A- g( q( F* h- \/ p) l以上为常用的函数! x1 G: j! D D. N5 U: ]# ^& k" S
还有很多,如有需要我把资料发到你邮箱里
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