|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句0 c& t( X# s$ k% g
if <condition> then
1 I4 G$ r1 Z5 L" ]0 X4 h <statement sequence1>;6 _# d* g7 k* f
elseif <condition> then
9 T+ e# s# o' n# } <statement sequence2>;+ E3 D; s* F7 D* u
else 6 ]9 f- Z" |8 V
<statement sequence3>;+ V6 n* X, Z. C% a8 P: V
end;
2 y5 o- L1 P& K; ^7 S如果分支比较多,用:
6 k% V% X, K, ~( I! X& D. A inspect <expression>2 Q) G0 Z4 z# S/ v8 E
when <constant_list> then
5 _0 P+ X" e+ o <statement sequence1>;
5 q9 M$ r! `& M# F when <constant_list> then
. U2 \: n( K! p4 H# e, z. h <statement sequence2>;
; @& l% \' @) v& ^0 i/ @; P ...: E4 j8 {5 M& E! C
else
; o. }, a: p4 C/ Q, Q# x1 K9 x <statement sequence3>;) r/ c$ ^5 v- m. f4 {
end;
9 x* t# ~: P* ?$ c
7 x* W6 `. W6 X3 f0 M1 [0 V) N. i2循环语句
* F V3 }. N3 }! v; W, x( n (1) from <statement sequence1>
5 F8 {. G, K3 [! v& {( m until <condition> loop' b8 t- p2 @: C; P5 q9 r8 V# L
<statement sequence2>;
$ X% x2 u+ @- A8 y1 s$ l end;7 l9 @+ n D. T6 z
(2) while <condition> loop2 p$ U7 Z" v4 Z' ^$ p' x
<statement sequence1>;# [& D1 r+ A! y/ i# M$ W" u
end;
; E9 K n% l: E2 c0 r& a (3) repeat . l3 ]' b G7 U' C; W- Z, y K
<statement sequence1>;
4 b+ v3 A& D5 `( n2 T" d* N until <condition>;* Q* G9 A$ e5 F7 ?" c
(4) for <condition> to <condition> loop4 P) n4 c# D+ b
<statement sequence1>;; L+ {7 J' e- F9 q
next;
/ B, H, j$ d1 B4 Y1 Q7 b6 C3中断语句9 E }1 K; y7 l( M
waituntil <condition> prio <integer expression>;: Q7 w0 I5 m, b: e1 j
1 P# n( U: T5 a I4 G5 {( b' }, G
2 H' @. Z6 r! K6 z6 F以上为常用的函数!; _6 M' ^5 g2 ?; H& B5 b
还有很多,如有需要我把资料发到你邮箱里
# L/ Y Y7 q5 q8 {# z; t' |/ ~, @( G. E) Y( y" z
: H; v( K4 F7 F* m
. S! ^8 d" P) f/ r" c7 p* l" n5 l : P0 i, T8 ^4 c
' r. @$ J* S, U
: A$ h0 D6 ^) D3 K% z j9 D
8 B2 K: R0 C7 d0 x# c9 s
+ ~. a |& K. Z( i
' j0 n: {' ^' w" B7 u- z6 A1 _( R3 {
1 ]1 s+ |0 z" j1 e8 u; h |
|