|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
* U! |: X4 {* r/ J W+ Q if <condition> then. Z z9 ]/ w8 @2 W0 u7 _3 T
<statement sequence1>;
7 b6 e, u4 E2 g" H% d3 z elseif <condition> then" g$ o/ b% v1 l4 _0 G! e# o E
<statement sequence2>;! s* L9 Q& r: V
else 7 q3 L1 A1 U! x
<statement sequence3>;9 Q$ k U! V) f* I; \
end;- B) Q2 V7 }% N5 m" Z
如果分支比较多，用：
+ A9 J0 ? N% n4 `- C, V inspect <expression>
# t5 h1 p9 n/ C when <constant_list> then
: V9 N1 Q8 d( C' n <statement sequence1>;
9 E2 S. V4 e# a! U ? when <constant_list> then
. j/ o$ z7 k! o0 O2 _ <statement sequence2>;; m2 W% C" a: Z; v' e: C/ p
...* ]# M6 L9 T0 m0 @" E" V( D. ]
else
5 m4 {; O* S/ N2 d* B <statement sequence3>;- o, Z* \& x6 U( k
end; F. O$ M6 ~; h: l; O% K
5 h6 n3 f' T, g2循环语句" ^4 D* T W. U3 N2 I' T5 V2 n
(1) from <statement sequence1>; W/ a& j' R" }% v/ U6 Z
until <condition> loop
Y* i8 O: F9 A. Z* x$ R; T# y <statement sequence2>;
$ ?- l' X' h9 e% m/ m end;
7 r6 }' `" a) [) L# V3 e# v+ q$ V (2) while <condition> loop
' j" f3 J4 z ?$ E' a8 @" x <statement sequence1>;
8 p, p% n( x% E. M9 {) l7 G* E end;
( w& U7 m0 c2 A" w (3) repeat ! E9 G7 \% ]+ }
<statement sequence1>;
% F- X$ k9 `$ f9 H5 v7 q until <condition>;" T& J5 ` D8 Z. D$ n
(4) for <condition> to <condition> loop
0 |$ l; r) E" p) n; }+ d <statement sequence1>;# p7 b( d. K, q; N M
next;
$ s* a, F- A! B8 I+ B7 z3中断语句
* o0 P" D2 Y2 A( Y q9 z waituntil <condition> prio <integer expression>;) {8 \5 |# i2 L0 M7 P- i5 O, i
9 C* N! g' k2 V) f- J0 G; n8 Z! _) r: i2 {9 H4 v: B
以上为常用的函数！
2 Y2 J# x0 e2 p! t+ Z( l' o还有很多，如有需要我把资料发到你邮箱里
/ }; } F/ A" W U/ m) _# u
% y8 U6 a! | r- p
. d6 l8 D/ L, R+ u9 C# a- t; x! f& g) P; o2 P( L+ P
: G- g, v1 v0 z w& i4 a) V# }3 j2 _0 `2 p! ^
F; p1 \/ [/ S/ c& l. M
6 {# R1 d$ _9 r4 X" T f9 I% w% u
! C6 }5 f$ K/ o+ i/ j( j- N5 D: z @8 | F6 C! q+ [
# a$ g% q1 z" B7 r( N
|
|
[复制链接]
