|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句% o9 }9 D+ J, L4 X
if <condition> then
/ J& z0 y* M8 C% `* G <statement sequence1>;
$ g! B& u/ r4 G, s elseif <condition> then
$ Y( c. Y# e1 R8 b" J <statement sequence2>;
8 ~% m0 _3 G2 O8 H ^ else
P( `5 J0 C# F' P' Y <statement sequence3>;
* X& e3 X2 n! j end;+ b D, F7 t- T8 x# ?: E
如果分支比较多，用：
$ A( L. _- {2 k) n2 e inspect <expression>$ R0 D. j9 m l# _" `5 R! D8 c. L
when <constant_list> then @+ c. n5 {. X& D1 g5 y
<statement sequence1>;7 G. A: }6 V k2 f# ]
when <constant_list> then: |9 d) f, T) z% Z: w. y S, w
<statement sequence2>;
: f7 l+ z2 D6 T0 `+ J6 B& P; J .../ }* q, W+ ` W6 H
else
4 e0 Z- t; w2 Z& {5 q* Z ], c <statement sequence3>;7 [7 {! z3 D" d: i/ g
end;$ W+ R3 m% C E: Z
% D+ ^: G2 f' i, H: V
2循环语句' U. h8 O5 j8 `! @* J" }
(1) from <statement sequence1>% N2 v2 Q9 ~. _; U2 o
until <condition> loop5 k6 [- u6 K8 U9 i k! K
<statement sequence2>;
0 q) O, O" y! m& n9 Q& S4 Z0 y, J8 \ end;2 p# A& i+ I" U/ E2 M! p$ X
(2) while <condition> loop
+ n! z1 V/ m, J" I# I, Y <statement sequence1>;
8 ?( X+ x) p9 b9 E9 U5 D end;# H1 f) p' z3 m, K. L( W
(3) repeat j6 ^* j7 a8 n( M6 E) y9 v
<statement sequence1>;# w7 [: S5 T9 A, R; Y( |
until <condition>;# z; A2 O' d6 u4 I+ |1 ?
(4) for <condition> to <condition> loop
7 Y4 c+ ~. ]; o8 v <statement sequence1>;; H1 P4 y3 A) ], p
next;
8 F! Z2 W. K, Y% N& z3中断语句5 T. F# n8 ^) f# t' T# m u$ |
waituntil <condition> prio <integer expression>;
3 D5 {' A3 B. |7 }3 G9 L$ I, `
3 I! K4 z9 N6 A* a& ~" _! O- `( l
以上为常用的函数！. V( E& K+ p3 l$ b; K4 L8 L
还有很多，如有需要我把资料发到你邮箱里
1 C3 h5 @( z. U! `- i
1 ]- X0 n q6 U6 O* N% G7 I
+ `5 Y: y* U: J. x5 N( s
# z+ l# G9 i5 a2 y; G
/ m/ o$ ^9 }, }8 { i1 Z7 l4 A
' r" ?6 V5 d s8 ?2 B. t, T7 n& h3 b- l% ^. X
' z x% x# o e2 ?- @& O' o) t& t
3 _% G' h. ^+ s9 W, _* ~/ r/ `, Z
& M n: I+ w2 t; Q: e2 x C2 X( X |
|
[复制链接]
