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发表于 2012-11-13 08:48:12
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1判断语句2 m2 Z: x+ s {
if <condition> then
. T* F. K: S. [+ {$ t <statement sequence1>;
1 ]- E0 W! C% a1 V0 U$ j& W# p elseif <condition> then5 [& W; Q1 _; m1 V
<statement sequence2>; f( J) h& ~# f3 W5 R/ B8 B: Y( R
else
' Y! ^# e0 e- i <statement sequence3>;% w* V$ G( T% n6 d9 d
end;
' F) h" ^% l, d/ A如果分支比较多，用：) M+ n" V$ z& P4 ?) N4 G
inspect <expression>2 [ {% y: P( p# I0 a8 U
when <constant_list> then
! b. l3 X" W7 S7 u# W+ o <statement sequence1>;
! T9 K" a/ P/ m; p& ? when <constant_list> then- C9 v# t+ _- k1 u+ y
<statement sequence2>;% c1 l2 R' P: s
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else3 g6 z' F" j/ [
<statement sequence3>;8 {& y5 A$ D+ q
end;
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/ s+ c" A0 a' E- y1 z2循环语句
L6 K% H5 Y8 \6 [ l (1) from <statement sequence1> Z" s2 ]2 S- l5 \
until <condition> loop: A- r9 |# f: I' T. j
<statement sequence2>;7 r- M# @* i6 c( X; t
end;
3 b$ C# [# P& U* K! ` (2) while <condition> loop
) ?$ L$ W* G& l1 O <statement sequence1>;
) o1 p4 W- X7 ` end; I; `0 b( O5 B) [8 c5 l4 Z& o- b1 G
(3) repeat 8 _6 Y& y" T5 j, {' G! }; ?
<statement sequence1>;
4 v, b5 l# X" Z8 F3 \6 k until <condition>;
+ K2 t3 x$ s! k& M (4) for <condition> to <condition> loop
4 t% P6 o$ f* F% U H! J <statement sequence1>;" l$ R$ Z) @- p4 G
next;' K' e" n1 L. D
3中断语句& V# L$ x' f7 A2 m3 G& A
waituntil <condition> prio <integer expression>;# m8 ?, I- L2 u4 z/ @
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以上为常用的函数！7 ~ P9 q7 H4 u) a1 v3 S* s, I
还有很多，如有需要我把资料发到你邮箱里 0 g$ _7 c8 t7 a4 U8 I9 }! V! z
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