|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句 W1 ]7 e5 {* f' t* I7 P8 n l
if <condition> then8 A9 V* x( z5 U1 {' p7 R
<statement sequence1>;! X& j) B, K5 B& A) C2 W8 x @* `7 \
elseif <condition> then: o. Z% m' W/ x6 A" V* u
<statement sequence2>;4 O( @) ?# J5 h0 L- P" u3 c6 a
else : D# J# t% D, {) h! x
<statement sequence3>;9 U0 ]8 S+ g8 c4 L8 ~8 M
end;
}/ {3 C9 |0 h1 J如果分支比较多，用：
$ w* e8 a, G p4 p \ inspect <expression>
. @8 j& V( J V& \; _) x when <constant_list> then
# V! p) [: `' I* M <statement sequence1>;; m* ^# ^$ A" M* R1 _
when <constant_list> then1 d% Y/ E- f; p7 P
<statement sequence2>;
3 _9 j7 {; q; ? |- J5 S ...
8 Y: K+ V4 ^, t [ else# m/ D3 B' H/ ^& @5 N+ d( f
<statement sequence3>;/ S, s" a/ {7 a( M/ E0 f, d
end;
. ~0 t5 U1 _. {/ ?0 l( {9 Y1 O8 a( B$ ?) B
2循环语句% S9 c! g: W2 e& v
(1) from <statement sequence1>0 N/ f2 @& X' I, t! i+ D# n, a, F
until <condition> loop
" |0 R6 }* ? n( d1 L! v# | <statement sequence2>;3 ^. q5 [+ ~7 p1 c. a
end;" _* Z R: f2 o: Y3 u) w! j r
(2) while <condition> loop
- ]( \: `7 z$ v+ b8 s' Q0 p' T <statement sequence1>;- y6 z8 D) ?4 f, m
end;
- _, M% \$ Z% D" } (3) repeat
: }$ M" j! q4 \1 f) v& j <statement sequence1>;
+ j+ c8 B. V _8 c0 A' I' P until <condition>;4 D7 J) X; x9 U1 t( J
(4) for <condition> to <condition> loop
) D/ Z1 \6 X" V/ `; h0 z <statement sequence1>;
. Q+ l4 O; r2 B8 I next;
/ ~1 H$ p9 A, y/ `3中断语句# [& W. W4 K/ d0 @
waituntil <condition> prio <integer expression>;
; \7 Q0 |$ [0 ?& z( o: O& r
" w( w# L$ O" n* J
* I* S; Y/ H; m/ P2 ~以上为常用的函数！ ?3 R, I3 {* Q0 U" [% B
还有很多，如有需要我把资料发到你邮箱里 ! n) ?" s8 A- N
, e. S% P% X2 O& F2 P7 s. O
3 }5 ^0 S5 [4 Q! K( M
' n* f x5 f9 X, _
* t0 p& _" t, E$ H, s# Q
1 b4 C: K, P7 G R
' U2 M# F" }: l) z4 M0 g
/ x+ k t" ]6 v5 n! f; X2 h
; M6 e# o3 K' Y, K+ { Y7 E5 }% B- @; r5 n8 _& D
+ B6 [; [, ^% s! Q' w+ a( U) a |
|
[复制链接]
