|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
! P! q# k! Z. X' J if <condition> then
0 @; ]' b1 O" t/ D4 k <statement sequence1>;) V1 p; [# {8 }4 c2 j4 K
elseif <condition> then
6 O+ m, R n$ Q# x% `0 |2 q+ R; W <statement sequence2>;# h4 B5 m% y7 P: Q
else
; N% A3 m- g; ?3 C- I! x) a" p <statement sequence3>;- P4 ]8 _$ p% y( R2 W4 ]: b
end;6 C; F& i5 X0 v, I8 E# Z }
如果分支比较多，用：
9 \3 l; X5 ]; t9 X, ` inspect <expression>
! E7 O- Y, x" Y) Y- e+ c when <constant_list> then/ ], D8 e$ q: D
<statement sequence1>;
: @( ]* f; c3 X- @4 I, H# x; R when <constant_list> then
$ {- Y; U, g/ r0 Q" ~ <statement sequence2>;
0 p0 n) \- f$ D/ g- I ..." p! I) b u) p7 Q r" q+ w
else
7 R8 Q: z8 @8 g4 q' ]5 M: @' V8 r- h <statement sequence3>;
! C: N0 z' ^. R8 b: Wend;
# ~- n/ x& C+ y e) i9 Z+ J
; Z! t+ p* k5 E& W5 k6 m) U, a2循环语句/ m) J% D1 X& J! d( L( S! }
(1) from <statement sequence1>
8 f9 X/ y+ \$ e until <condition> loop
! g( d a, Z3 ]/ ?5 A6 o2 T <statement sequence2>;
2 j$ L7 K/ Q" \* C/ h( E end;
4 d4 P! i; i; L( o% O2 D/ I (2) while <condition> loop2 R" [# j4 H- B g, Z, G
<statement sequence1>;" M- y; e7 v8 ?$ L. ]( b7 I: F1 I
end;# t; G+ X8 x, e X( N
(3) repeat 7 s& i( }. R+ _. n! N
<statement sequence1>;
* M. N& e& |4 S! L- L6 ? until <condition>;9 n; w( W/ C1 [8 Q& M: v1 L7 ]5 _
(4) for <condition> to <condition> loop
$ ?+ Q6 ~+ Z& {+ A <statement sequence1>;
, P a: Y0 Q# W. w3 k; T( N next;
) L# Q- U4 p" l3 w4 `+ ~3中断语句/ G6 A, f0 E- s1 l- E* \1 x7 ~3 \
waituntil <condition> prio <integer expression>;
( b; L, |3 D( v6 I. J: n3 q: @& K# I. Z; a5 c3 T! h
9 O' N/ \/ a; k% T
以上为常用的函数！
% q0 }+ C, z& `" z+ ]还有很多，如有需要我把资料发到你邮箱里 + S( ~. {8 w8 Z& Q. m
6 |6 r* Y# L) o# o# f
9 L* c- e8 w$ `
9 x/ h* b# H6 K4 t) B( r0 X
. e5 u5 I3 U; d% o# r% v7 t; I% X) n
0 E% A! }0 ~& R! i2 M3 K
' Y4 [* `( U' s4 u- j8 W' y& V( p) s4 ~8 ]. R' E, R9 F3 h5 Y
- _& P. B# @4 @$ Q2 z0 M \0 @( p1 m5 D1 M) m
3 }- z( y, { t {* @+ }& P
|
|
[复制链接]
