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发表于 2012-11-13 08:48:12
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1判断语句8 y3 b5 e; B. [9 q9 ^4 [. U
if <condition> then
4 g( B) v$ J' A' ~3 s <statement sequence1>;: y8 q; b) j7 d1 S' c
elseif <condition> then
. m: I# J+ [2 x( g# j <statement sequence2>;* v7 h! B* Q' O' c% V- \
else
) C( p% W6 `2 n. ]6 l9 w <statement sequence3>; h' U9 G0 B e1 |5 a7 k5 O
end;
& N: T1 h# [' a1 ]+ j- o/ V如果分支比较多，用：3 `. d" d9 G1 t) n( j7 L3 T
inspect <expression>/ I- J0 m) S* o# i4 q
when <constant_list> then9 f4 s' Q( u! w, t$ M+ I6 ^4 U
<statement sequence1>;/ ]4 _) z1 R( d9 S( n
when <constant_list> then4 B0 N' Y$ p% M) q+ {. k& r0 O
<statement sequence2>;7 h$ k% U, r/ j/ L2 |* ?; O
...
' ?+ A6 m# U- g' d( W else
; |( G9 K; v% q5 Q) \+ l5 z <statement sequence3>;
! {$ @4 P6 S, r# i- k5 ~+ mend;# [, X) ?% M/ p" w+ m. P. k! c, X2 s
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2循环语句: ^& G5 p% R# H7 t& `7 d6 ]
(1) from <statement sequence1>/ J$ V0 ~ X% Z* h
until <condition> loop
- @5 h2 y, K9 O <statement sequence2>;6 o, M/ ~ R- Y8 k& W
end;2 }8 ]) H; N4 A; T( ~6 H K: z
(2) while <condition> loop" ~- U+ Z9 O L8 _3 m0 ^
<statement sequence1>;
O. O1 A1 T, g. o end;4 w; h, ^& S8 X
(3) repeat
# W4 k, c, ^* `7 _ <statement sequence1>;
@- c; V. r8 \/ x until <condition>;) E* d( K- k; Z o
(4) for <condition> to <condition> loop
7 E: H; r( A% t7 u0 C <statement sequence1>;
5 k/ P( ~5 M" K0 ] next;* y$ C( ^' F2 f& N
3中断语句& q6 A |" P3 E$ R
waituntil <condition> prio <integer expression>;
# y! K, l( T0 a" M& r0 P2 s x; n G& x7 ` c
! X$ l. A8 |0 C" [% I
以上为常用的函数！
# S8 [" j g/ `% s1 O3 Q2 h7 G还有很多，如有需要我把资料发到你邮箱里 : u$ @& V& R& Z& M6 P3 w/ x
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