|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句6 v; V, v4 Z! Y0 M2 `8 Q- u& m
if <condition> then
0 O- f: U; n0 @& j% G5 g <statement sequence1>;
& d9 v( [/ z1 V3 p elseif <condition> then
: o: S" m }) w" V! P# t5 a <statement sequence2>;/ l- Z- Q9 B! q; J$ T# i
else d: c5 ^ c& `1 D, A9 `& J
<statement sequence3>;
1 r- h3 w" Z6 x: |( u; S end;
: h5 G# Q' i7 r p如果分支比较多，用：
; o, L& M: |$ e0 _* Y* g- K5 N. F inspect <expression>! v9 \9 K6 u$ K
when <constant_list> then
5 y q0 M& o/ h" |3 |+ | <statement sequence1>;
7 i$ g3 w1 q: _# i8 D% p when <constant_list> then1 o* I3 {7 M3 X3 D3 } y! ?
<statement sequence2>;/ o8 G' k/ \ _- u
...
7 h5 C3 \, Y: F else
/ f& ?7 ], [/ i <statement sequence3>;
. ~# x% M) N. Y# |end;
0 X, C! @) Y& M- H! D
2 W9 D$ q v9 h+ _- t# R2循环语句/ {; v+ i0 ~! N& Z, p
(1) from <statement sequence1>
1 l% g2 A, k' ^& O( L* O) ]9 d until <condition> loop& c8 J! ]& E- y( x$ [' p; M3 c
<statement sequence2>;( O/ ]% ?; _! a
end;
8 s4 ~" h, W: r2 q. `' }0 ~8 X* e7 q (2) while <condition> loop9 [4 M2 S. Y) ]; M. H: `2 A9 f
<statement sequence1>;
" {3 B; }7 l' D9 q9 } X& N end;8 H2 y& e. C2 r: D3 f# C
(3) repeat
/ i1 T5 _; M7 S <statement sequence1>;
6 [: Y: L; U- e" i: Q: _ until <condition>;. j6 y/ b1 J6 Z9 Y# C1 ]/ U
(4) for <condition> to <condition> loop
7 i, z/ \4 r5 J n, N3 Z5 { <statement sequence1>;
2 d, t# k. p: I/ S D; \7 Z* } next;2 p! j/ [7 g# s g! _2 M' O, O
3中断语句+ @2 h0 r" @* [
waituntil <condition> prio <integer expression>;" ?* y' ^# q/ k2 {
+ G+ y6 y0 h/ w
2 E5 T7 ~# f7 C0 l以上为常用的函数！
/ U9 Q& M! W8 q! t; |% `还有很多，如有需要我把资料发到你邮箱里 3 K3 }, y# c- g$ W3 r, b- d
5 ^! V' F% Y/ H c3 ]. Z9 U. l) \" U" X. p" ]8 c9 Q
3 z& G1 T& U4 x - @9 X5 d# i8 P5 b) R. j
' U$ ^# H$ Y/ H$ C+ o/ o
3 n4 X3 Q) W4 S$ Y, x: \$ o8 f: t i4 X
$ i q7 D8 H! @& t2 K! `4 F
* _! a/ n! W9 ~7 g2 b- o * v, q6 q1 E4 f1 P1 E$ x1 f
|
|
[复制链接]
