|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
8 k7 K# n' x7 b0 m* H3 O9 A3 x9 q if <condition> then+ w" P" X4 _7 C2 [$ P' S1 j
<statement sequence1>;
6 s+ u9 R& ]6 q4 ^6 `5 E+ V. g elseif <condition> then- {) W& M `1 ]- X- ]; E
<statement sequence2>;
' a3 T4 ^2 [; |( J+ F, ~4 H/ R1 A else c4 m+ `1 ]. g0 `5 _5 _/ Y# \
<statement sequence3>;) k- ?. q5 |' A2 u* |
end;! J2 R- z5 Z9 |( x: n" Y. W
如果分支比较多，用：
3 A! J! S) @; i5 ` { inspect <expression>
! ?: Y5 g* r0 r+ ~0 Z when <constant_list> then) I7 v9 f* A; ?& S" Z
<statement sequence1>;
# t; z) ?5 i @, |3 ?3 a8 t/ c when <constant_list> then' }: d3 R- n& Q# r0 D
<statement sequence2>;5 ]8 Q. ?$ r X9 S
...
% L& F4 \8 |6 X6 D7 L else
* x' V2 b, ?& V2 T! p <statement sequence3>;
" J3 t0 v; T3 G* g' K$ e7 x& @end; ~& `2 O* G$ t. v9 w4 Q. d$ l
4 g5 q& \+ r! x- L" A% h4 f. {
2循环语句& T# G$ n3 @7 `7 C! I6 p
(1) from <statement sequence1>: J5 c# V6 @% G
until <condition> loop+ h/ n7 j9 K" u# }+ l h u, N
<statement sequence2>;1 h. R! `; _* F A! {
end;% s8 ?, B# T5 t4 Z; f7 y6 I+ G
(2) while <condition> loop
. J" l. h# h% Y% u( J7 u <statement sequence1>;5 I3 C1 P" A7 H1 W( L
end;
6 I& N7 a/ b& G. z7 l, f$ | (3) repeat
# s! o( ^1 [1 _9 {2 Y7 m <statement sequence1>;
$ y5 L2 T1 G% X2 e5 T until <condition>;
7 a7 E' D, f2 ] s E' J; s (4) for <condition> to <condition> loop
" i" x {4 k0 }6 D- Q& b7 R/ v5 _& i( c <statement sequence1>;3 G' U( R$ W' C8 R+ `
next;& ?( q3 q' u. T. N* m
3中断语句+ H" \ u4 _9 k4 d Z) w
waituntil <condition> prio <integer expression>;" m5 K* K" A3 O4 b, u, E
0 Q; N" k# v7 _0 f: y' l! q
. j4 I7 u+ g7 @
以上为常用的函数！( k& G3 a9 _3 Q
还有很多，如有需要我把资料发到你邮箱里
2 b0 p" b7 A/ o8 z% ~, _7 M0 [
! {3 a, W# y% l' Y1 N5 C
9 Q* k& @. b; ^, S* r4 O
5 i9 D: K8 o' _, n5 `9 F . e& J4 X5 W" ?- w' A* W
], o4 f; k0 Y$ {0 Z! Q
/ p$ U! j% g8 K+ H+ E
/ z5 c3 Q; ^% w: u/ j7 H* s
0 _3 K# o5 j0 [; E+ D
6 z- @; j$ [4 V* p+ F: t& [
" V4 M0 V% M0 P |
|
[复制链接]
