|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句& w& ^/ r: m4 T- N1 D
if <condition> then/ q% e. T7 y/ f5 H, O
<statement sequence1>;% X* u6 \0 ~8 V" s Z6 F
elseif <condition> then: q A; T- S' [$ _
<statement sequence2>;3 E# `& E |7 m1 |6 l
else . @) @5 V0 F* @- U
<statement sequence3>;
7 s7 I+ ~! ~. c/ g% J end;
4 \" L D- N% `4 M+ z) z) R( L如果分支比较多，用：
( n8 z6 N8 E$ _4 y3 p" o inspect <expression>
6 @# Z, H4 _* L. V when <constant_list> then
2 j3 b0 t3 t; c. z <statement sequence1>;" G& G% _5 d( e1 C$ w2 B
when <constant_list> then& _, Y7 l+ z( L8 f
<statement sequence2>;3 Z, U- F( J0 q+ P% @1 U. ?: v% }
...* `# e9 w. T M0 M6 I. }% r' _6 `
else1 x; k( s3 V( i( L, r5 k
<statement sequence3>;
6 D; t* @- w; a7 ?9 [6 E4 _end;: v$ [) A$ M# n# ~$ J7 o
' D0 R& M: p5 U5 M. o" M0 u2循环语句6 x% J4 I1 t: F* J# R }
(1) from <statement sequence1>
- F' K. d* U2 R* `! X9 ^- C$ | until <condition> loop
/ [' N$ }+ T5 a8 t <statement sequence2>;( Y2 ^. b6 V- W+ N T% O( ~
end;+ t8 X0 Q$ g$ @- i R4 D
(2) while <condition> loop! T+ L x5 @7 V3 F( K
<statement sequence1>;
! P7 a7 R1 @; z' f3 U1 ^! U+ h end;1 i) Z. i3 K0 {4 H( `9 ]; S
(3) repeat
: ^, ]9 t$ }! @. p5 p! E) @, s9 } <statement sequence1>;
O# @4 I5 u- ? Q. {& ~ until <condition>;
, W! W5 b- V4 z: J( l3 n (4) for <condition> to <condition> loop8 g% K/ u7 o m3 W4 P# X( K
<statement sequence1>;$ P, W P0 Z2 j% t* C( ]
next;% ?. g! q4 Q6 F8 U4 v5 I
3中断语句 D7 M3 O0 \8 K
waituntil <condition> prio <integer expression>;, f2 @7 u3 h( @1 B& X! e. Q: D# ^" `
, n- _0 S3 @$ C# k& i
, K6 P7 ]3 A3 f1 q& h
以上为常用的函数！
3 _0 }6 u3 y& y/ L- C3 W9 Y+ a还有很多，如有需要我把资料发到你邮箱里
4 y8 e) p1 _& ?: T) n& W. L
1 }. w t, W4 L" c$ [/ Q: N9 R! h* }
8 @2 C" s5 b# J& ] ; c. A( l; O. V/ q2 s* ~& O* V
) `" N; q$ ~2 y: X* D
, w! J+ u* u5 v: r; Q
+ ^9 M" F$ `+ x/ k I4 ^% p; }$ l5 l8 H+ ^# `, S
. Q, G8 `2 L' b
7 O# \2 L w2 ]) d. i6 c8 ] |
|
[复制链接]
