|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
9 Z* ~. w9 D5 y7 |, Q if <condition> then9 J6 K9 |7 p. _3 d: u
<statement sequence1>;0 `) u! l \% H/ `1 G9 C1 F5 j
elseif <condition> then
0 f6 G- `7 K8 Y- W+ d3 ~ <statement sequence2>;
0 ]. ?. u, {5 d; a! {6 L' r else
) C1 u! J$ O2 L. r# a3 z <statement sequence3>;- T: \) H8 F$ h) H* R8 e& A7 |
end;
* V7 g. w4 v( T- f7 L1 d7 }9 R$ e如果分支比较多，用：
( A8 k2 r7 m7 d inspect <expression>, n$ H% R, U3 T& Y; n
when <constant_list> then5 i) C$ \+ G5 n' K9 v) l% }# ]
<statement sequence1>;
9 O @& _( K( d1 @, m- q' f: k when <constant_list> then
& ?7 q- A8 q& e0 g( o3 X <statement sequence2>;4 T/ H% t0 e g. r7 L
...
9 K- S/ X( G' Q# G3 ?3 j6 J0 X else
! R- V9 S* u( m <statement sequence3>;
% f5 c3 g9 \. bend;5 `0 r: i z; s) A$ B/ Z
0 | G5 A6 k( Q, l4 d# Q
2循环语句
1 z$ Y- J2 C/ Z2 c' n* j# H8 h (1) from <statement sequence1>& P9 E" ]/ w3 d6 m7 O7 S7 z4 e- {
until <condition> loop1 l& T# _: Y/ h9 m- S* J! f
<statement sequence2>;* {; Z+ |% i, ~! S9 C' u9 p3 l: w
end;
! c- z5 \* V) g6 v (2) while <condition> loop
) _/ V1 R2 \8 V1 K) h' g- S* I <statement sequence1>;* j) F6 h- [5 M" M+ Y7 O. W1 U
end;
% V+ ? G, L7 d K- Q (3) repeat 4 F" l- Q+ K7 |
<statement sequence1>;% G' s+ j- C5 K! J( O4 W) n: D0 g
until <condition>; }: H* j) g* i& G& ]( M
(4) for <condition> to <condition> loop
2 x- ^' P+ v) \! s6 z/ X; }" [2 w <statement sequence1>;, B' i* j- O4 G1 h! J0 w' z& q+ P( c
next;
( c o" V/ I( Y8 J3中断语句
9 {+ `7 m& a0 w2 x waituntil <condition> prio <integer expression>;& q4 g) p# Z) N; p
( O6 f3 f m- B
' R) S# a) Y0 [ i3 w以上为常用的函数！. i) q+ ^5 O4 a6 O \0 r
还有很多，如有需要我把资料发到你邮箱里
* A; {9 I" D; g1 X! V" X0 W; j
# k ^) P: g; N+ o8 B; Q8 e6 H" ~7 S; ]! I# S7 E0 X
' x# U- z9 g. g6 l; m& i, {3 E0 l- e : z$ d, [' Z! t7 E/ @, s
* r. d# J5 K) u( ^$ p: z
) i; _5 O% O' a6 }# K
- x4 k4 D, F9 C/ H7 p! B( k4 a% {0 D! m8 J
" n5 t3 I8 @2 x& j! l- T% c* c
9 `2 T* c9 ]2 R0 ?
|
|
[复制链接]
