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发表于 2012-11-13 08:48:12
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1判断语句
# q+ F8 B. |; w if <condition> then( e1 w% a. F- Y2 X6 _
<statement sequence1>;# Z9 C9 G4 _" N* E4 k, A/ z8 ~
elseif <condition> then- ]7 r( }- v0 G# M
<statement sequence2>;
0 I7 u! k& u& u else
0 U' R+ h$ u- J# D; G* } <statement sequence3>;$ q$ `- y b7 G* k
end;% }7 p* B: v! j/ J! J
如果分支比较多，用：. S0 g3 _, {! ~- z* T" M* v, u
inspect <expression>
M5 b7 `- ^2 M+ ~( n; R when <constant_list> then
( ?+ | _4 \' i3 |* { <statement sequence1>;
+ u2 F; B, l. d3 s J+ B* X when <constant_list> then3 z/ V% |1 |. r, s& o, w3 Y; v
<statement sequence2>;+ d5 t2 q) t. Y4 |. C
...+ I$ z7 S! F( P
else
8 b' d' y1 i/ a: J1 v, p9 l h <statement sequence3>;6 }3 m: W1 H7 `- x" C7 P" k& p
end;! r6 [, c E: I0 b! C0 L: M$ P8 p
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2循环语句/ V1 B+ Q6 r' [$ ]
(1) from <statement sequence1>( T& {7 ~8 i$ m2 A/ a P
until <condition> loop
& W: K- x3 I. w* n1 ?) T+ _ i- S8 R <statement sequence2>;( {2 H! x4 m. L" N" j
end;- R! w( p) A7 I& j+ f
(2) while <condition> loop
% N" [ e5 l- w! y# H <statement sequence1>;% T' G% _7 E8 M0 O; a
end;
! V6 B' g+ ] Z! t7 G! p3 v \4 A. c6 `$ v/ u (3) repeat
& g# l# A) J6 E# I/ p: a" u <statement sequence1>;
+ t6 i" O' g1 R" I) K until <condition>;
' n/ s/ l, B8 G& J$ | (4) for <condition> to <condition> loop
% D- r% i, b( Z6 J' | <statement sequence1>;8 _% ~! Q" l, m% l+ e
next;
( U+ {, H$ x( H+ h) N% }3中断语句' |3 I( m [4 n, e5 i
waituntil <condition> prio <integer expression>;: U0 ^! a' n9 l4 C; @; K
' o9 l8 p- O* D; @3 Y+ o' q) ^7 V) {
5 [* L3 g0 L3 ^
以上为常用的函数！
9 E6 Z. j3 r" x! w* |% d* L1 ]还有很多，如有需要我把资料发到你邮箱里
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