|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
( W, L( H! f/ Q: K if <condition> then1 k# c9 b% z0 y
<statement sequence1>;
& o* @9 n+ C2 V" g' Q4 ^3 ]/ L elseif <condition> then/ I! w! j) K2 L, U% Z2 Q4 O
<statement sequence2>; z+ c8 n2 V; S* `/ j" o
else
, r; l6 B! C+ ~$ n! t3 ] <statement sequence3>;! g( x1 l& C, C, d
end;8 E8 G* [5 L2 }; K! A1 _) ]
如果分支比较多，用：
, w/ C5 V4 i9 F. o$ _5 I2 C/ A inspect <expression>& c$ a0 ^5 f; Y6 s% P8 n4 N) N
when <constant_list> then! U2 [" v& j G- Z2 r
<statement sequence1>;
( q* e- |, G, m! f( b9 u' G when <constant_list> then
; S7 K$ j8 l T& d" X7 S# ` <statement sequence2>;
5 i' T, w8 B Y6 K6 E ...5 y$ P/ `1 j) u
else C$ K v P8 z3 t# t8 c2 D5 B2 R) x
<statement sequence3>;% H* A, J6 R: @9 [
end;# C) w- f" ]: x( o4 N
2 |9 ?4 s! K6 g/ ?4 o5 t0 s2循环语句% h0 A2 n; S! W$ D1 r$ _
(1) from <statement sequence1>
# R6 ]* i/ O+ }# J6 [; S% U until <condition> loop) C5 U! V p" P9 B. u# J) f
<statement sequence2>;: ^1 Q: I4 `4 o8 s' ?: _
end;. Z7 ]$ L3 F v( F& e
(2) while <condition> loop' {, E4 Z1 E, g6 M0 F/ S* U( r
<statement sequence1>; z# r- w% H5 ]4 X" s" @
end;
. P4 l1 e: h3 J( L0 D (3) repeat
! ^# b( x$ H+ K" s, t# L* H <statement sequence1>;1 F/ s0 l ]3 f. _: l
until <condition>;/ m. N7 D* u/ ~) ]
(4) for <condition> to <condition> loop
( v2 Q6 P' m2 h, y0 O <statement sequence1>;8 A+ o; O3 X) w5 K" v, D
next;( G1 p& Y; s' D# w+ p! B# k0 x
3中断语句. w! {0 f+ W* X, s6 {5 v
waituntil <condition> prio <integer expression>;" Z+ l; A2 g. V
! z3 o% y* `+ n/ ]5 {- O# e5 O8 F
6 ~1 B j: {+ C# S以上为常用的函数！
+ p! y; d: n# I; }: K* |还有很多，如有需要我把资料发到你邮箱里
" a" D5 A: q5 ~( F$ k. T1 _2 k8 N0 _
! z0 V7 m7 L* |1 p
& y/ g& b+ x2 `. f* m) k4 E
3 K% k+ ?$ E' b
( H, @0 S3 b% C$ ~- W* N9 f3 B9 b x+ w6 D( y; u X, ]
. Y) _& ^7 f" c/ Z m
+ l+ k/ ]+ a8 h
( ]6 `$ H- _1 O* z y
. M$ i, K3 L8 y; _ |
|
[复制链接]
