|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句 B3 f! u2 U, `& S) u1 H
if <condition> then f4 k# g! ~" o% n; H! e; ^% t6 `
<statement sequence1>;
& C* ]& ?5 U0 q9 A elseif <condition> then
2 ~7 \: F' B& D% P1 A <statement sequence2>;
5 h( V [+ h) L else 8 w, [; a% I4 n+ {$ F7 r
<statement sequence3>;
& U8 A* N7 T& j s0 ^0 G& ~; u end;9 [5 x/ Q6 n( E( r8 ~& e- ^
如果分支比较多，用：: W, c7 G) T& x5 ^
inspect <expression>
# D( k2 g4 J, ~; U z, ~. D. Q! O when <constant_list> then9 e5 S- f+ }5 l# ]' Y
<statement sequence1>;; ? M ~% U3 P
when <constant_list> then
, o# v% ]. P7 G4 C! F <statement sequence2>;0 f" ]0 b) s9 j A$ v2 H9 U& W
...; _, m: k+ |; u# }3 l
else
) ~1 p1 L6 U" i. g# ] <statement sequence3>;
. n: M4 B% E" Y/ x: ^0 ^4 Cend;
/ Z' K% q+ l4 q$ J. N- Q- D0 }0 S
' L- Y) Y+ X L w g2循环语句7 h2 q/ j9 X' ^6 B8 R Q6 _8 C
(1) from <statement sequence1>
. ]8 J/ O, [( P! e+ z) j8 E until <condition> loop& R5 s9 z, N4 p% F9 `2 g+ v4 I
<statement sequence2>;
* O* l7 V; o8 B: S, J4 |$ m1 m2 ? end;; d1 N: Y- X* o
(2) while <condition> loop
* Q) A( O" N' ~5 N9 Q <statement sequence1>;6 \" Q0 H- o0 ?8 u% V* f
end;
) h: u# T4 X/ @- ~ (3) repeat # r7 b- i3 r# @/ ?3 X
<statement sequence1>;4 f9 I& j9 u9 j. O4 D) `
until <condition>;
$ v5 T7 {( e9 j( E( j. V (4) for <condition> to <condition> loop
# h5 ^2 l2 _- n& A9 ] <statement sequence1>;1 s! U0 M4 C2 s0 R
next;6 J6 }& G0 [! Z% L) I
3中断语句
, J3 u6 h4 s% F6 n/ e. M waituntil <condition> prio <integer expression>;
9 `) }; p& b. a; M+ x# }1 J+ F+ o' y7 i" Z
4 a( ~; z# `3 L: i5 H以上为常用的函数！
2 c8 D) u. U0 ^ P/ F还有很多，如有需要我把资料发到你邮箱里
7 H) U" ?+ z2 I9 R( v( r7 x2 @& I$ i* t$ ~2 G4 h
8 N0 W* W8 m0 N
1 T% u, \3 c' r E/ |& Z$ y, q# M+ f
3 q i; h# P4 {5 t: k& k4 J2 \: B0 | o3 F x
6 |! D3 Z* M* w5 Z% ?/ r
! |0 Z+ F y! ^( h. W( x6 z- d
* F7 l/ B0 B" D. I+ E1 p) u9 D
' F6 B" |+ n; {
|
|
[复制链接]
