|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句, i0 e) p& v4 ~
if <condition> then
- Y! b5 {# g$ E) c" Y4 n$ u <statement sequence1>;
. ~2 H* k. {( r) q% U# a8 E elseif <condition> then
7 P1 G9 g- {$ d <statement sequence2>;
" y: a. y; Q' N/ l2 I/ `6 d( { else / `1 k4 o0 L; B5 i
<statement sequence3>;
* X1 @. K( |$ E+ o6 a end;) s& o, }% c& X. T2 Y- f& y
如果分支比较多，用：$ X2 Z5 e' e. R' V4 |) i" t- e
inspect <expression>
7 H, Y( T& t( A7 B3 x( f ~, Z when <constant_list> then' \; V! A$ S8 Z4 O1 z
<statement sequence1>;, S; u5 |) i, e2 f; d' [% I
when <constant_list> then
% _/ b% E' k. Q0 a1 p <statement sequence2>;- y4 M) x+ n e% ^% U
..." C( q" E; C6 B5 K( X2 `7 v
else
0 S( }7 {+ ]* W# G; q <statement sequence3>;* K7 B& h( A j3 }1 b" z
end;
2 Y: m/ `6 {7 ?9 ]5 S7 H1 T. y& O
$ S9 ~+ ^9 m& H6 C2循环语句- b2 k6 g; v( s( e
(1) from <statement sequence1>1 Q4 b' A& I. n( Q2 D( R
until <condition> loop3 ^5 A8 |3 P, ^: r7 O2 K$ Z
<statement sequence2>;
' i7 I- o) ]7 @1 A4 s end;: d4 f/ P3 P/ l9 J4 z$ |
(2) while <condition> loop
# z f$ W. C5 J% M8 O+ s <statement sequence1>;) s! Y5 F' Q% r. B
end;, o3 c+ j2 e0 A; u4 Q E" U
(3) repeat - u( s) T( b1 b. T! |( x7 Q3 W
<statement sequence1>;
_, O9 r' D# M* f until <condition>;* o$ L5 j. L6 e6 J
(4) for <condition> to <condition> loop
7 F: G/ @' [$ ^3 \ <statement sequence1>;
& n- e: m- R2 C; v) m& w next;* H2 h6 D+ w% _5 B
3中断语句
/ a$ T+ ?$ d( ~( S, G5 S' n waituntil <condition> prio <integer expression>;$ i* \1 F" _5 Y- U
5 a: o$ q- r! P: G$ o6 l7 m
! S) b* P# x( S: S/ ?9 E/ ?5 W以上为常用的函数！
+ r0 T& g0 F) y% }. y$ H! o还有很多，如有需要我把资料发到你邮箱里
! ^ F" V" M8 B; |" z% \) l' n5 e4 V) w$ E% h
4 l/ O! X' W E( a' V8 B
r- j' ]6 ~0 _6 G# {
$ w: ~) w- z; l. F# k! ?$ S+ }& v+ f, M4 x! j5 e! Z# ~
' E' z2 C9 h) t2 ?2 ~) l
: I* N/ D" Z2 F
4 |( p1 @$ u; v0 J4 v7 Y* h2 L7 f5 ]. c; A" n
2 r6 |, ~$ i( d- I7 I7 U" T8 h- C
|
|
[复制链接]
