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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
6 A/ q' z% R: M" r; v1 I# R if <condition> then
0 J8 v, E1 J( M/ Z' \- ] <statement sequence1>;
: X' s; R/ g) R; V9 N elseif <condition> then P! u$ [5 x4 x4 M2 d# F
<statement sequence2>;: n4 z3 |3 S: ?% y* p4 v) v$ ?
else
k8 |6 s9 Z) O) T <statement sequence3>;
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如果分支比较多，用：- J2 G8 F# b) f% J0 g. j$ D9 A) Y
inspect <expression>
5 d* d; r* z. ]; I. U* C& E when <constant_list> then- ]( R+ E. I& D5 M' G
<statement sequence1>;
1 h/ _2 N) U( b% z when <constant_list> then
) o9 b1 n: e+ g: g# C <statement sequence2>;
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else; Z0 u% e; r' v5 b: n/ z. S' ?
<statement sequence3>;
q9 k$ w7 A8 H9 P y( F! N& u) tend;
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2循环语句; R7 e% }) G% J- i
(1) from <statement sequence1>
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<statement sequence2>;+ ]$ R! L6 i; K2 P5 }" F
end;* N. ^& t) z* D0 y+ ~" A
(2) while <condition> loop
0 v' _% u+ I8 F( Q# I1 u2 s' a <statement sequence1>;7 v1 W1 C6 T2 y5 l7 I
end;0 W* c4 q, {' L' _6 ^% ~
(3) repeat
( L4 w& ~. X; s) t <statement sequence1>;& O7 Y8 k& i5 Q
until <condition>;% V, U6 `/ C9 ?' A7 q8 {: F0 l
(4) for <condition> to <condition> loop0 Q( I# \4 P; X6 {" ]- V6 J f
<statement sequence1>;( Z# }7 V! q. E* W4 [: P$ T \
next;6 Q9 z% [/ [% `+ R; \4 w7 i- b( u( I
3中断语句
' @+ T" i3 L7 @% V- b1 O2 h& x waituntil <condition> prio <integer expression>;
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以上为常用的函数！
! Y7 { J, E) Q, ^3 s8 w+ D" g+ o还有很多，如有需要我把资料发到你邮箱里
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