|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句/ @$ Y1 e) t. V& g/ ~# k
if <condition> then! F7 J- w1 S }- o) ^7 c
<statement sequence1>;
9 @+ N$ a ]& [- _% E' c5 _ elseif <condition> then6 v$ j9 a( m/ n- u
<statement sequence2>;
( {: [% M A+ r; v F else
+ `0 Z% w& h0 i8 h O+ r5 _ <statement sequence3>;; Q# I1 X1 W# C+ l2 u
end;
* |1 [8 Q" l) `: l如果分支比较多，用：
4 L' L# L$ m$ F0 Y0 m, T inspect <expression>7 i: A$ z2 \- s5 h4 Z3 P2 ^
when <constant_list> then
$ Q& t; u! Y; I8 n5 h <statement sequence1>;5 Q2 o& L" d& x: g- C7 S+ x
when <constant_list> then
* [- z' ^% |4 V" i* f) n) ] <statement sequence2>;
$ j: r8 V$ L& Z* V' G* Y6 P& F# z# V) { ...
% M# e% D6 ^# k* r7 _ else) h. e9 b: z, E" x, }5 y7 p
<statement sequence3>;! N; ]4 i- P3 R2 q
end;; H8 T3 X; p8 ^* W# V3 w8 H2 |
6 s$ r- R7 ]0 B! E+ ?7 E9 J
2循环语句6 I2 Q& Q+ c) i9 N* a) k) B: e
(1) from <statement sequence1>
: o6 h. Q0 t6 A+ {+ f6 J5 r( a until <condition> loop
& [6 D; K2 h( H) a <statement sequence2>;
( C; ^7 y: P6 u& z end;1 I6 R( |$ O' H8 z) R
(2) while <condition> loop
' d5 ?* b; u0 c& s( [: w, j <statement sequence1>;
6 f" P5 U% [8 J& [$ K end;( w- M4 i; c! {, f0 R* M- Y4 [
(3) repeat
; e& x2 q- Y5 E; ]" F <statement sequence1>;
1 [! U# [" V1 \0 {, K until <condition>;6 u% }/ |2 z$ E1 ~+ u8 z, y1 j) k$ [1 T
(4) for <condition> to <condition> loop$ j' [- B0 K! O) j: E" G7 R) ^
<statement sequence1>;
; Z- |: T* B$ a: m; `8 R% D' }2 B next;
7 g- n3 \: \/ C1 N1 v% q3中断语句
/ A9 }3 K ]3 Y+ G waituntil <condition> prio <integer expression>;
! t9 Q' D5 s. \. x! S: y% [/ L
7 E5 b6 L7 Z. q5 c' T7 M' ^ k# W& } X9 h, X. u/ i" F* C% M) e
以上为常用的函数！3 f7 m2 T3 h3 G" s+ o6 x0 p! R* r; \
还有很多，如有需要我把资料发到你邮箱里 0 o5 L; C& F# d0 n( o
7 E$ g+ D# i3 z/ ]' n: }3 q' `
: e+ x$ c% _/ B5 s* E
2 ~: B9 K" ^: s8 _
/ d- C! f5 V8 c7 B# C0 e
7 a6 H; k. j5 ^
8 D1 U4 h8 L& {+ W+ }( r
2 ]- w; N' H G% }- F( `
! w9 B ]8 H) w' ^3 q6 [
" G3 h( t1 r1 n" D2 l/ V5 ] T) s( A6 u1 q& ~% Q" c# Z
|
|
[复制链接]
