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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
' T- o( e9 P7 V3 H/ F3 U3 T if <condition> then. f7 Q" ~! Y. p% z
<statement sequence1>;* w; J! [' d3 b( ~, R7 Y& b
elseif <condition> then. K5 g2 l0 f4 U- Y5 y
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:
! M3 d$ f+ L" o6 r inspect <expression>
7 t) B4 k) y1 c3 C' T$ { when <constant_list> then+ e4 S. g7 h" U0 c5 o
<statement sequence1>;3 `" {6 K4 f/ J) h
when <constant_list> then
% Y) q0 \" {# `( x; A$ ] <statement sequence2>;/ i* W( d1 G0 W! t
...
1 T/ ?/ ~5 J% x* i* i- Q# Q0 | else
$ ], i" J2 M: l <statement sequence3>;0 @9 ?* X% S& P) X5 G) x5 k# r
end;" c; T5 M9 l8 [+ I
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2循环语句
3 _9 k/ F( Z2 h7 T8 x; R (1) from <statement sequence1>
! v' r9 }) L/ p4 G/ I until <condition> loop
9 j6 E, ~3 w3 X Q& i <statement sequence2>;
+ p7 Y0 a& r% k; v# u3 P end;5 j8 c* M% `4 S9 g) i0 r& Z
(2) while <condition> loop3 I' U6 ~& F+ P; p8 Y- v9 u
<statement sequence1>;: h4 p7 g3 T& c( N# H
end;: H! J) t, X) a! a1 B
(3) repeat ! K1 v( P! p' ~/ Q' v- D7 {% `
<statement sequence1>;6 Q3 P/ E* v2 ?2 u4 O# H. }2 t- Y
until <condition>;0 p7 G' ^3 A- n7 d' \/ ?: {( J
(4) for <condition> to <condition> loop
v( K# S. x* v$ u3 W/ c# G <statement sequence1>;+ P8 g) U0 l9 V3 V! P5 C& c3 v
next;
; j4 _) i% ~; ^2 `: s' b3中断语句
$ O6 H. h, F8 ^. v M5 X9 y' j8 [ waituntil <condition> prio <integer expression>;
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以上为常用的函数!( g; y1 p$ q/ J) ]+ M4 k6 i, ]2 L
还有很多,如有需要我把资料发到你邮箱里
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