|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
. |) b) W4 w4 j: A+ ?: l if <condition> then
$ n' K- |+ K) U% K <statement sequence1>;
7 \7 s6 N% k! A$ J0 \5 j elseif <condition> then6 A3 D) A7 K H- ]* D7 G W2 x7 |" X: h
<statement sequence2>;: C/ A/ n) h" ]! {5 M( N+ ? k2 d
else 1 r! I0 v j4 ^- p! W' q( ^/ o
<statement sequence3>;8 ~$ z" x$ s# n; B8 @; d2 y+ `+ k
end;6 t: E. B% n3 X* n
如果分支比较多，用：. j; T% w6 S: {! m7 ?$ O7 C
inspect <expression>
2 }( J2 w9 g6 |, I6 t when <constant_list> then
8 ]* C9 F, N/ n" ]- T <statement sequence1>;: b! l( z( H$ u3 \2 \4 i4 L
when <constant_list> then o/ @9 _/ ^* f; M8 C- f
<statement sequence2>;. d5 N5 ^$ m: ^
...7 p, n, D u' b5 _# P
else
( Q6 s9 B$ U# o% k9 x <statement sequence3>;- {, g0 G$ E( l; J; R+ W
end;
3 v3 `! n1 [3 Q, ?8 J; I$ a5 u' @6 @$ |
2循环语句
, t' U7 @( a# A! i$ A. ^7 Q (1) from <statement sequence1>" v# I+ ` H* K: P) R
until <condition> loop( J2 A) s1 S; f, \
<statement sequence2>;
8 ]" o: o+ H) Y5 ]+ g: j5 X+ M end;, |3 E& e* v0 h1 S
(2) while <condition> loop6 F1 @4 x7 _$ M; ~. m
<statement sequence1>;
- B4 P7 \7 `! S2 _1 c end;9 s# v& D5 h) N' |
(3) repeat
. U2 a& q3 @" H9 ~7 Y& W <statement sequence1>;
& c/ h# j0 V7 B6 b. d' S$ L until <condition>;, C( V6 a" y8 ~0 c% c; ]6 h
(4) for <condition> to <condition> loop* H4 O( G6 i3 ^
<statement sequence1>;
) M. G% ~8 G; I7 Q6 K0 D: K next;: o) H' }( b, t6 j( Q
3中断语句
# n0 {. a* a) h2 a4 L) e waituntil <condition> prio <integer expression>;. I2 G6 W1 y& ` [
9 D& z9 \( N! C3 K d/ C3 l- S9 F! Z" k8 c& V9 L- m
以上为常用的函数！4 x8 T% D8 l2 Y9 x% B0 r% i
还有很多，如有需要我把资料发到你邮箱里 . e$ }1 C+ N: J0 w( @
( S0 ~1 P! ^9 i& e$ U: P" u; c0 P
, K6 u, V. P" n " ^3 N# [& S; r) w
S2 q( A, ~, Z: i
2 s3 Q# W8 L4 J! p8 C
/ ?& q' V" w6 _! m1 |4 \* g# |8 x; m1 A- B: y
# O3 J# p9 ?' s
! c4 ^* ]8 g' Q4 @3 i |
|
[复制链接]
