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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
! M: u5 N3 P' L5 r. r, _* N6 T9 m* }) N if <condition> then
8 Q( O* W o- ~ C1 X <statement sequence1>;
3 X- M+ ^2 O9 C& ^6 z; [ elseif <condition> then
7 w$ y2 P# d) }" W- I' G$ d <statement sequence2>;5 M, X, p- x& I" A3 p
else
; u) q0 I( @9 Y4 j& ]0 Z/ [$ Z <statement sequence3>;; |, k4 W4 g( @& c6 e: U
end;
; T% U1 [7 [7 |" |* @如果分支比较多，用：
2 Q- m3 q7 @) K, ^* z, X* @% ~' n inspect <expression>$ b$ q5 V6 o) C& ~0 A$ Y
when <constant_list> then
5 {* v( ^9 K) p- ]6 w& w <statement sequence1>;
& s+ G! E5 _5 Z2 k% T when <constant_list> then3 b7 `2 L: K- n& z1 q' Z5 j
<statement sequence2>;: n0 Q4 `+ |8 J" s8 I
...
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<statement sequence3>;% g7 d* T/ \- n4 N& ]" v6 U8 Z$ A
end;
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2循环语句
) v, z: w6 P% g3 ]4 x. h (1) from <statement sequence1>8 `9 p! \ Y( M" ^
until <condition> loop
. X- |. y4 ]. x0 |& W0 a. T7 h( E% b <statement sequence2>;$ ^7 F& Z4 x: n; E
end;
( U' v9 d! w- \/ t) M+ c (2) while <condition> loop5 ^$ S$ Z6 n E
<statement sequence1>;
) q9 i. U& Y# S; P* Q+ @ end;& i- C3 x8 z: R
(3) repeat
5 x; S) F _6 c" y <statement sequence1>;; x" ]9 \* ]# T0 c- ~, z
until <condition>;$ n! I0 C% |( L+ I, I3 h& P, h7 d
(4) for <condition> to <condition> loop
0 v, v$ T8 D9 J9 K3 D8 b4 u <statement sequence1>;: d! X% @% ?) D; c3 ?1 n% t3 ?" z
next;4 P y& s! g, z1 v- Q
3中断语句5 ]) O% i5 b5 R9 J6 |9 t E
waituntil <condition> prio <integer expression>;& C. p w/ E( P0 p0 G
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以上为常用的函数！ \4 m. ^5 |$ l
还有很多，如有需要我把资料发到你邮箱里
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