|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句, K+ u2 K) @- S# d5 O
if <condition> then
( P& P# t! ]" j$ w* i8 C <statement sequence1>;
9 y1 `' _. _! V1 i# t+ j elseif <condition> then' c! p: @) R! u8 _+ F5 |
<statement sequence2>;' s0 D' u! n' ?/ b4 ^
else + o! ~5 Q! u. N5 C* Z
<statement sequence3>;
! r- u- G: {" ~0 I) q& Y& m end;
7 j( Z9 m6 O% u如果分支比较多,用:2 _7 r! r8 U( F* W3 J
inspect <expression>
) T- P" S8 t& o! K7 t t7 b, t when <constant_list> then
' b1 l( }* \; X3 U/ K- b! D <statement sequence1>;
1 k6 H m: v. P+ ` when <constant_list> then
) w, L0 N) e: c! Y* h+ I2 _$ n <statement sequence2>;
7 ~- m4 A* @* ?( M; K* U ...+ E$ r y! y7 n0 P6 M
else
. `% Z" Z. p) T( N* X. E' |) A; w <statement sequence3>;" _+ {& t5 X+ ~5 E. B* U
end;
" i" a6 `8 R$ t* k* [, }; Q. Y: s) C4 R; _3 K7 e. F/ h: ^# q
2循环语句3 C9 v/ j& `" |0 k" L3 b8 y
(1) from <statement sequence1>
7 M" \ q6 e0 G) c3 W until <condition> loop
" l) @5 V$ c; p! U5 f. d- q <statement sequence2>;
2 a3 Z$ I5 |+ }% | end;
* E& }% j7 V# N. B$ l: H/ X ~( ?0 { (2) while <condition> loop
3 O% q+ p& ?: S) j6 @( Q. I <statement sequence1>;
6 h! A9 h3 V+ a+ @: p2 S end;/ {+ ]- e0 v- W, M; L; N7 h
(3) repeat 7 t1 X6 h2 {7 U5 N# w5 X( H2 m
<statement sequence1>;" P9 F' V& K. F* ~
until <condition>;
8 E3 n! k/ V7 m4 i (4) for <condition> to <condition> loop
8 o& [" c& U: o* I$ i <statement sequence1>;
N( i! e: F% K! P. l next;
$ s0 C% G- u6 m9 u9 p3中断语句
+ l8 ] g& A. e& r waituntil <condition> prio <integer expression>;0 k! G7 ]3 o, b
8 v; |; E" E* d6 c) g
. R# q% D9 j. e0 @" N. V& l5 X以上为常用的函数! w/ `- l1 Z! ^, U
还有很多,如有需要我把资料发到你邮箱里
$ Q) z7 L/ y4 q! f) t/ h) s/ P7 [' l4 W
: D! D+ L& V* U
. n+ E. |7 W* \) h; H- C% T. P# w % J \) A$ `, K( D8 D' T; B- F
5 K/ d' q- }8 B, `9 S
% B7 B0 F9 N" H7 G# y( ~3 S& q" h! ]. U
$ U2 T: z/ ?4 ^4 h
6 V4 P; L9 N0 F2 u$ ~3 Q' @
$ T. ]( q$ [% \; G0 f# O0 D' |
|
|