|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
: p6 t# H0 c. q- \$ ^; @7 \ if <condition> then# W2 ?. m. g/ B
<statement sequence1>;
! D- \# J! B% K- k elseif <condition> then1 S- Q, ^4 b8 n- q/ ^9 ]& Z" I
<statement sequence2>;
: f1 N( j" d& Y4 Z else
* r. S; e# C/ D <statement sequence3>;
3 K! l' Y. ?* q9 n1 o end;5 F& Q: _/ r- F6 z+ {4 m
如果分支比较多，用：
) a- F2 p# [9 o2 B inspect <expression>
, e. \+ R/ Y4 m" n# t when <constant_list> then1 h7 S3 {, f8 I3 S4 P4 X' a
<statement sequence1>;8 F$ R, O1 n! ~
when <constant_list> then6 T8 ]) B. P4 y1 j6 ~% n; C
<statement sequence2>;4 `3 t4 J1 A3 M0 N
..." s: Z% s4 H' L8 a; `
else- E( ~1 P- q8 J2 _' N
<statement sequence3>;7 G& U. x& _* F
end;4 U, b" `1 x- V+ ^. V. x. `
4 _9 v0 {% P6 A& R# F- M9 k2 }
2循环语句& c2 x4 r3 t" E7 q
(1) from <statement sequence1>3 F+ Q. u E- l' B4 n* }$ h8 B
until <condition> loop
1 ]) J) R3 ^4 Q3 X* n <statement sequence2>;! {6 ?- l5 n, p/ b- g% J
end;
( c" g: k# H3 d/ x: o (2) while <condition> loop& F* i# g8 l# {6 T6 x" o2 Q& y
<statement sequence1>;
8 ~ A7 |6 r) ~- h5 | end;9 O7 m3 d; ?: R r8 c2 g7 B* |
(3) repeat
. t" V5 d7 n0 i/ _1 l2 L4 e <statement sequence1>;
9 A$ J+ w, c3 A1 D( C until <condition>;
2 u5 g" z3 V. B& t$ R (4) for <condition> to <condition> loop" H+ j2 F, B5 i! s
<statement sequence1>;, f5 Y/ e7 v8 g5 T0 y6 C% e: k
next;0 B0 m0 ]0 o- f! s
3中断语句- W' G P0 D2 t* y' w
waituntil <condition> prio <integer expression>;
6 r4 B, M+ |( i- D! A/ K
5 c# D( ?2 x3 t+ ? @9 h) K9 n) [
以上为常用的函数！
; g1 \ r9 Y3 Y% {3 R9 M" ] F" K还有很多，如有需要我把资料发到你邮箱里
1 B0 y' N! Q/ e: A$ b; \! y3 j# B, s/ P( Q
% I% T' A) \3 K. a& |) p- E+ n: e
% Q6 l# E2 p9 J; @9 i
' |- v' k. s% L+ z/ w
9 i0 h2 Y& o2 F- D3 y4 j: z
2 x5 l! L I% B6 r
" z+ a/ ~2 E1 P9 i
: d' x( r$ m( g m: `; T8 s$ R5 F5 U: f* T1 @
4 r; v/ Z4 n& E+ @+ d5 M
|
|
[复制链接]
