|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句: ^1 G6 ]: [/ q9 B! V5 U+ G
if <condition> then2 `6 x% ~' ~3 }' z* n$ T1 c% I* T: I
<statement sequence1>;
' ?* E# m, ]( p elseif <condition> then2 n* r9 o1 ?1 M0 j' n# c
<statement sequence2>;! `. F" H) K" b7 f# c9 c
else
7 F6 d# q6 d; A <statement sequence3>;% ~; n# k8 e* b1 j7 r" k; V
end;
, E+ J4 u/ b! I# i$ [1 S如果分支比较多,用:
' {0 f5 f; z$ `" {, S1 {$ C7 g inspect <expression>
! W, Y# {- h+ E when <constant_list> then
* e# e# I2 G( |- j <statement sequence1>;7 g0 d* P* W) q& u6 q, u& h
when <constant_list> then
, B* ~4 {3 m! E! N/ o# g <statement sequence2>;8 U% N( q _( L
...
8 C1 A- D* E, Z else; ]# y/ v2 ~6 h2 w1 _* N' r' P
<statement sequence3>;( q! f' [# }( V% l2 K9 K) N" m, B
end;& c# e2 ]" q( g5 y. h
& E( V+ D) w4 }; V) @/ D2循环语句8 h$ R1 W; d- l# g* p% q+ X7 I( w
(1) from <statement sequence1>
1 Z/ O' i) ?# P( t5 ^% y% [ until <condition> loop
3 s4 j5 M/ ]8 K2 [ <statement sequence2>;
1 q) X( U3 r7 R4 H' J end;: j; B8 m2 h" n2 f: U/ R
(2) while <condition> loop2 m2 q6 l+ d! O5 m z; S5 \
<statement sequence1>;$ |8 [& h' s; J; {0 g
end;. V/ w0 j/ t* D, d
(3) repeat 8 {2 Q- Y( n, w4 g
<statement sequence1>;+ \0 T" y8 v' D" v2 `: F6 Z) T
until <condition>;# m3 y, f# P% R! I8 O2 B
(4) for <condition> to <condition> loop+ q' C; ]4 e" D* u9 `
<statement sequence1>;( q- ~! t) x0 x* m
next;1 U* [7 ^/ p8 `
3中断语句
$ m; t3 W; Z/ O waituntil <condition> prio <integer expression>;+ K8 z( c: O' @* M! f3 L9 j0 u: ^
9 p' z, @- N) l! Q6 y3 R$ j% {+ Y9 }
- X" R8 X& X# J以上为常用的函数!
) j! P. U* ]) I6 v; a. A还有很多,如有需要我把资料发到你邮箱里 , Q) e1 }9 m, v$ j* o
' P# @" X% O6 x& D
( J+ ]/ G7 c/ H& h6 l5 S1 x B/ d* l
( V6 a/ F8 b0 Y. I* ?, f* s7 b' n
$ o x2 {. D C4 F
% i+ Q- f6 q5 q) K# r+ { ~4 U! P2 `5 o4 v. w. q
0 v, c K3 [7 A1 o% n9 P# K7 Z& R b6 l
7 U6 J7 j+ r0 @. d4 C& \) Z |
|