|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
, d+ @3 \+ F# [$ M! \' y5 e if <condition> then [ N/ g7 p' w2 f7 \0 g
<statement sequence1>; x! r, N- `1 {' O" h( ~; u
elseif <condition> then
9 n, G M/ Q ]$ f1 M <statement sequence2>;4 ~) n0 S* F/ E; R' c
else
5 q5 E, Z% F- M. y" V( Z <statement sequence3>;& ]4 `# J! i: y
end;
" _9 s+ k" ~* Z1 \& _如果分支比较多,用:
& R/ F4 x L; H# [/ t inspect <expression>
$ ^- P# w6 `; p$ u# ^+ M when <constant_list> then
) [2 |, J E: {& U9 w <statement sequence1>;% g0 @% {7 u6 n& e* c
when <constant_list> then6 U3 B y' \- u% n
<statement sequence2>;' t6 L' l" ]2 F* ]; ~2 r& \
...% j: e* N# v/ ?" { T
else
7 Y. T6 N; ]/ @8 A9 d8 n+ r6 e <statement sequence3>;. Y, Y/ I5 n, w; ^2 b
end;
t% Y' E/ b: z5 E& ^& @8 @, Q: w" A* L5 F8 I' f+ f8 i
2循环语句5 z, f4 P8 n5 B# v/ Y6 x! f( @
(1) from <statement sequence1>
! U' c% Y% Q. K# [# o until <condition> loop3 Z3 r! f) A) ?6 i8 X6 C* w
<statement sequence2>;
1 L* C+ e1 p; l+ B w end;+ m& q/ |) N9 L
(2) while <condition> loop
! B% q8 L6 M! [ <statement sequence1>;+ p# p( C7 t1 W: ~1 X
end;
% r7 w# W/ N4 x7 `$ } (3) repeat ' m: [+ x" F! E+ B/ I
<statement sequence1>;' F6 D k3 e9 J
until <condition>;( c& ^% n' V4 |8 n/ N& f
(4) for <condition> to <condition> loop
2 G* `( L- W5 @3 K7 L9 D <statement sequence1>;
5 J' L s b' S. {( D, H next;
0 L) V3 ] T! i/ f; A% q3中断语句
& B4 g* p3 b9 l' w" I# J4 ` waituntil <condition> prio <integer expression>;
. z+ F6 z7 P( z* C+ Z' ]. o& G7 g
" f" N; i* _# D; B" z% ]; ~* }. X
! v2 K9 ~/ E5 _7 a1 Z以上为常用的函数!
" A. Z' f' d7 P* X" X# V2 Q还有很多,如有需要我把资料发到你邮箱里
6 o C) p% F2 k7 o: F: t0 t
( V2 Z# m3 x5 n# }! E0 q( B! J; k! @$ ~' t# ^) x2 a
/ t. H: ?8 {3 A5 O3 a4 b
' p& T- q# H3 m: _9 x1 I4 I5 I. b* t0 e! L/ g% }
u0 C) u" k3 h& j9 [% [8 S- n9 O7 Z! {, h* }$ b
) n& B% f3 } F# r& h0 r
$ x6 E, X6 a3 ?5 g
: i R( a( P/ L |
|