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发表于 2012-11-13 08:48:12
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1判断语句; i3 ]1 G3 K/ {3 g
if <condition> then
1 `1 {% n, X" P' b" B1 a <statement sequence1>;
5 X+ X$ I6 o3 O3 p6 L9 X elseif <condition> then3 i$ l' F" L4 b
<statement sequence2>;
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<statement sequence3>;9 l: c% N4 f9 z& a9 O6 V* Q
end;- h4 G: n j( e+ c" \# d7 a2 X( R8 r
如果分支比较多，用：1 t* @ i6 A$ K5 h' e4 F
inspect <expression>
/ K% T8 x( J d when <constant_list> then9 K' P. }7 a) \- @0 T% r
<statement sequence1>;2 M: p% {0 C6 r' m$ Z
when <constant_list> then
- q7 @; Q3 `$ Y+ C6 ?( E <statement sequence2>;7 S* {& Q' p1 A
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else5 y6 k5 w3 {- V) w
<statement sequence3>;
4 h4 t6 t; O0 f$ s, s! I5 nend;1 D# e% k4 {& u; G0 W7 f1 T4 K7 ?
& Q3 n& \* i! m' ]: B* d2循环语句
9 t o# w8 r9 q2 { (1) from <statement sequence1>2 J$ Z2 G, Z7 t! [
until <condition> loop/ d$ ?" i9 Y# W& c
<statement sequence2>;! t. ^# @9 D1 Y# n
end;
0 F/ n: O" l+ ~ (2) while <condition> loop
( Y% A+ g0 v! j$ z3 P <statement sequence1>; ^$ d; q( G0 {8 ^! `
end;
4 X+ o- @8 h1 v1 T6 C, A$ s* z (3) repeat / U5 f5 O$ a% F& B; ^( N
<statement sequence1>;
2 {' w w, z- a2 S9 w until <condition>;
1 R% r8 ~" S k6 T4 S (4) for <condition> to <condition> loop6 H7 {; i: i4 e$ ^+ a% V
<statement sequence1>;- z# t- N L1 W3 r
next;
% k3 N. u ]; m3 u# H" i3中断语句4 t* V9 C8 y+ n) g9 ^. j0 u/ D$ q. Q
waituntil <condition> prio <integer expression>;* K5 r( `2 W" B) ^% M$ f$ H" z
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; @( K- z; p5 [ p( X3 ]* y/ q0 J- a, F以上为常用的函数！( x$ i$ p5 f3 ^; {
还有很多，如有需要我把资料发到你邮箱里 2 T. }6 i- v3 C6 W7 w
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