|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句4 @! Z7 A+ e( z' l
if <condition> then, n- C* ^8 j# q: t3 q, f- C [
<statement sequence1>;
/ D4 w n! q& v! Y. H" R elseif <condition> then- O$ N2 d" Q4 j4 u! e+ |4 M" w. _
<statement sequence2>;
5 T0 ^ y( q; J: A; Q7 e2 t1 V else
) u8 n! n8 A. j7 W8 V# S$ ] <statement sequence3>;- i( u3 {' n' u2 g) C' O
end;; j3 }$ }. V) b
如果分支比较多，用：
9 h1 J, d" c! |& H* B inspect <expression>. T8 p+ b# [/ m: Q5 ]4 I
when <constant_list> then0 q- X& l7 r. e
<statement sequence1>;6 \; p# U4 `& |
when <constant_list> then
. K+ ?/ e2 m3 U6 B2 J4 w <statement sequence2>;0 n) E3 f+ l' k: l d
...8 {" P, K# R7 k3 v# S
else3 t. W- a; M9 t; ^6 l
<statement sequence3>;" @- H0 x! B Q4 ]- z# S# T
end;
4 f, Q: J+ Z: M2 A9 U6 M6 D4 m4 b. N+ h& [* P& d1 G
2循环语句* ^1 w) V- Q1 d/ V6 K; d3 K
(1) from <statement sequence1>
- H, g2 [) T$ X7 H$ P3 X until <condition> loop; Y8 |" A g S/ n7 s4 v' A: r
<statement sequence2>;
. ?: @1 s5 H2 g3 U8 b1 W end;/ G" x$ g* [' l7 D+ r
(2) while <condition> loop
1 B8 d: T/ S- _+ w <statement sequence1>;
1 b, J r+ ~+ W3 D+ J& T end;: l) K" O! H) [2 R" B
(3) repeat . o! r5 @! S% {% a3 E+ ~
<statement sequence1>;, L, Z4 `3 c6 j- h$ P2 a- r) V% ]
until <condition>;2 D0 `+ J- `. Y3 z
(4) for <condition> to <condition> loop- u q1 x+ ]) y9 o. p
<statement sequence1>;8 G$ ?$ z3 Y- x9 m% ~
next;1 U; z9 I* }0 P: A- Q2 Q, d
3中断语句
( J8 f, ?4 \) G waituntil <condition> prio <integer expression>;' R2 i W/ H& U8 X- X% a
! t, E0 d1 e; Z1 R' K/ f4 x+ |+ h) \, ~: P
以上为常用的函数！9 M0 \5 H# \7 ^+ }
还有很多，如有需要我把资料发到你邮箱里 $ V) l0 a5 a5 V# |. \
1 n. V* F8 ~* p# Q- A6 G' o3 X
+ P. _, k; t7 d, C
! p; t% C0 t3 Y @# E : o: }' g4 A: b! v4 _
7 r# m% N9 `) S& G7 q$ M$ {' C# A5 {. k+ z- Q
; H S5 Q( m$ [: \ f) o! d
$ J/ |7 n7 n) J4 o- R1 k3 \: Z) w# \7 ]7 n2 u
* q% O: D3 x* H$ B) O: l% \6 s
|
|
[复制链接]
