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发表于 2012-11-13 08:48:12
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1判断语句1 s+ Q. H( V% l0 v! v2 h
if <condition> then7 B" V! m* g0 q
<statement sequence1>;7 A4 t$ p E3 F* T: I. {
elseif <condition> then
4 @, G& n/ D6 W* R# B7 C1 Y! B" |( w <statement sequence2>;1 N+ G9 V5 C6 o
else
$ l3 m/ G3 Q. f2 N1 y/ ?6 s <statement sequence3>;- }% F9 f& H0 r7 ]
end;
) @4 B+ G2 S7 {- V& B4 v- {如果分支比较多，用：
( |2 k9 w4 d( X F9 |7 B6 D1 {: D" j inspect <expression>; H. Y4 }: w& w
when <constant_list> then' x. B3 H6 Y7 K o
<statement sequence1>;
l" o. k2 r5 W) |( B) q7 V, q when <constant_list> then7 D" Z$ m+ l" j' e
<statement sequence2>;
# K6 f7 j; ]+ L4 i2 G; d5 Z6 Y6 @ ...
6 b: {$ O4 A3 |% d else
$ r) G) l2 T2 D* { <statement sequence3>;
6 Q2 {7 R, ]8 z: U7 ?/ ^" P( t) yend;
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@. o S! I: {) ]* u2循环语句
; p; r3 \$ [8 b6 O1 X (1) from <statement sequence1>* ~# y! V! d( i A
until <condition> loop9 a: {& ?' V4 ]- y' R) h
<statement sequence2>;/ \' {) s) w- O/ D, t# h# c6 ~0 ?- X
end;
! N7 z. V+ b9 q (2) while <condition> loop
1 q/ @! ?7 X; R1 c+ h4 s <statement sequence1>;* Y* @6 y4 f, n' o7 b9 v& h9 A
end;
1 h8 w6 a# n( S/ I0 F0 X% r6 ~ (3) repeat / W: W( a/ h6 c! w1 }# q0 s" m
<statement sequence1>;
4 F% H0 P# G/ |% d) y6 f, t7 L3 s( Y until <condition>;4 b; o5 l* ?5 h0 A
(4) for <condition> to <condition> loop& T7 A5 y, ~" ^+ I
<statement sequence1>;( G7 g/ p! c6 ]" `, C
next;
1 A+ ^" B1 C2 |0 v. K E' x; A# h3中断语句
0 }8 p; N7 k) P+ V. W waituntil <condition> prio <integer expression>;" A7 U6 _9 S2 ~
2 H4 W: Z/ z3 _
" `' q( {( r9 ?6 ^( m; M以上为常用的函数！
: z& A$ G1 ?1 J( o4 U还有很多，如有需要我把资料发到你邮箱里
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