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发表于 2012-11-13 08:48:12
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1判断语句8 Q7 F- Z2 C* d& \7 Q6 k8 h M! |
if <condition> then. Y* Q9 L: t$ j! O2 `
<statement sequence1>;- @# U# z5 Z1 {/ L, K; o
elseif <condition> then
6 [; T( A8 x/ S ^5 X! g <statement sequence2>;
" C5 I. J3 O. @: a' @( ]8 L! L6 q$ E else
3 y6 K" Q2 x& }0 A <statement sequence3>;
+ e: c: B! t* o# d6 [ end;% l& W0 F2 S7 j) W
如果分支比较多，用： o; R" E" Q# I
inspect <expression># k0 ]/ U; ]( |7 J
when <constant_list> then8 k: }& G8 P6 E6 W
<statement sequence1>; B3 x! ~1 y6 w1 Q
when <constant_list> then9 \% Y, G$ @' M3 l: t( p
<statement sequence2>;
/ p1 G' ]; _+ a8 e ...
0 a5 \$ X( L0 x: C- @5 m else2 G8 T4 ]3 v+ A! I" x
<statement sequence3>;, O2 ]5 }8 H3 t
end;1 X1 O; ?8 O6 g/ |4 h
. T# A) c8 v2 L/ F7 I' Z2循环语句+ a; @* L: O; D0 c
(1) from <statement sequence1> |2 x! H3 c5 Y e y& Y$ c# V
until <condition> loop
/ [8 b* K4 q. }1 [) E& t2 A" [7 ^ <statement sequence2>;; O( Y6 p! B* m% B
end;: K2 _0 M% c7 ^' V& L# A
(2) while <condition> loop
1 H, j! f& B4 K4 L <statement sequence1>;3 u o8 ~1 @$ u2 n
end;2 l+ Z2 P8 G) R5 Q1 O: o- K) B
(3) repeat . c2 n5 C( @( A# S! ?$ Y" H
<statement sequence1>;4 v# ?1 [. B0 q. H$ s% t
until <condition>;3 D5 w0 w: P; W1 T( v
(4) for <condition> to <condition> loop1 v# m7 R h$ z1 g' z& ~' r8 L* \
<statement sequence1>;
$ u5 ]+ ]0 u0 z$ z: N$ O z next;
4 D1 a6 G( h$ f1 @9 ?3中断语句% x5 @4 `6 Z- b5 v! r: \1 t
waituntil <condition> prio <integer expression>;2 C5 k$ J8 @6 R' v
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以上为常用的函数！8 i! Y; s( x2 H W- H! f7 `
还有很多，如有需要我把资料发到你邮箱里 8 a4 |- g# K& Z
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