|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句6 `- q- U" r4 i. F* E. w
if <condition> then: s7 M8 D& q3 u+ ^, K. J" s
<statement sequence1>;/ J }+ e4 d, C
elseif <condition> then
% `* U2 x& k2 T4 Q <statement sequence2>;% d+ }. i( R. }, {2 g6 L
else - Q" }9 i$ _) G0 m
<statement sequence3>;
2 s. Z4 ^$ u# E s end;1 ~$ I6 w. Y0 R0 Q9 P" P: ~4 [# d5 Z
如果分支比较多，用：* [# @- I( D8 ^6 q5 N7 z) H
inspect <expression>, l' D9 E/ _; Q
when <constant_list> then
" ]4 P/ ~5 P5 c$ x& \( I <statement sequence1>;
# A% v2 Z* x+ T when <constant_list> then t" k4 r( @) Z9 \; d
<statement sequence2>;1 H& ^ u: G) O) I5 v
...
X" L; V; b5 i# g( S& n else8 j, A: h# n4 v# G1 C# Q
<statement sequence3>;; H. E2 g8 ?" p# Q3 f- J
end;$ e3 d. k! d$ o
! H b( u, ]9 h6 b. ?$ A; h& J; _
2循环语句/ V; v4 \+ S" F# F
(1) from <statement sequence1>
$ g" Q4 a; {+ ]) J until <condition> loop
# ?5 k$ ?) m' ^5 T <statement sequence2>;
! q- h* Y) N% }6 M end;
' h# z! b, g* p0 ~ (2) while <condition> loop
2 d9 p9 J& O# _5 v7 L) B <statement sequence1>;
3 I' g; ~; z* U( P; {4 b end;: N. j; O1 g" ~& T
(3) repeat
2 i3 q6 }# M$ @7 K <statement sequence1>;
: p# O* y) [, N! H2 ]) \0 { until <condition>;
% f" R8 S! [1 J/ C4 ?- R& u (4) for <condition> to <condition> loop+ I7 P+ c6 Z" A. B1 v% U( O& A
<statement sequence1>;
r* b; L+ X4 p# {6 |( R4 e next;
2 }1 R) `: w* ~' |3中断语句
# H6 \5 |6 o2 o waituntil <condition> prio <integer expression>;
& A$ G' o- M3 W; [4 ]5 D2 I; b( {! i: S# Z$ g( W2 B
0 J+ ?9 b- P9 z: h( `: x以上为常用的函数！6 H5 w l: y& f1 Z+ Y1 ?) D. J
还有很多，如有需要我把资料发到你邮箱里
D9 a3 a, A+ k# a5 z
9 _. X1 W3 p: ]7 o5 a! v( l& y9 W4 N1 d, n! R6 i7 \/ ?$ X
4 i2 b* G, v0 V9 H5 c * x3 X3 c9 ]5 j* K* q# a
/ i( `8 u- j# }( {" p$ u
2 k' k6 P8 w" m
) H. y9 ?5 g; @7 f q3 ^- V, L7 ^7 f
8 k1 K: E4 S9 R) h5 O
t; M, J9 p. |% ~: ~6 u1 K# b
|
|
[复制链接]
