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发表于 2012-11-13 08:48:12
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1判断语句" F4 H) _3 i8 w- o0 F' b! F# j
if <condition> then l1 H- z/ e" W' |4 q; V! X
<statement sequence1>;0 \% Y- b9 q6 F/ p( {1 b
elseif <condition> then1 g: w, n2 F5 A
<statement sequence2>;
# ?. m9 P+ J) J else ( K! Z/ I' h' R" [" j6 w+ u
<statement sequence3>;* ]% r9 ?' m. S; s
end;# y& Y, f- e7 v( |2 {4 q
如果分支比较多,用:
) y' m1 V* S; b' p' T3 M' x inspect <expression>+ G/ m6 r6 Z+ z! y
when <constant_list> then4 M z8 q" B$ A) _, Z J
<statement sequence1>;
/ a2 ?* I/ o* ?* S. {2 b( h when <constant_list> then) N) G% s& l6 }3 J: g' f
<statement sequence2>;8 ?) B8 |( a# p! i! L
..., z7 x8 X7 M# d- Y& V
else+ G# S4 H6 x/ f5 R" Z
<statement sequence3>;
4 b$ O- S i3 d4 Y! Q5 Jend;
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: v; c( q* J+ h2循环语句; ]* V9 `- n7 P/ s8 t K3 ^* G
(1) from <statement sequence1>8 d& ]! w2 p1 c9 P8 O, @
until <condition> loop% d& q1 u% P: D% ]" M% i: T
<statement sequence2>;# D$ L" Q9 i& }; T* l
end;5 d; Y% ^1 u( m# r1 x
(2) while <condition> loop# ]5 m; k; }3 D: k9 _9 ~' ^
<statement sequence1>;& [7 }" C( q0 E0 e2 t
end;' C: t9 D# } f& o
(3) repeat
1 d. }9 f1 g9 O+ X3 S <statement sequence1>;
) Q8 A( I& l: C0 X o! k, Y3 @6 [ until <condition>;$ I- s# m: n' O: W5 S9 z
(4) for <condition> to <condition> loop" t* K( u: e+ p) }0 h( v6 O: j2 ]
<statement sequence1>;% ?/ T# b' N$ W7 E6 C' B, t
next;* v$ m# I. v8 w) O/ l7 A7 }! b" h
3中断语句# o: K5 \; R" J v7 U% x7 P/ U
waituntil <condition> prio <integer expression>;
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4 g0 m+ E( O" j0 F r* }以上为常用的函数!( C6 d6 q! u& J+ h0 U$ l5 z2 g
还有很多,如有需要我把资料发到你邮箱里
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