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发表于 2012-11-13 08:48:12
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1判断语句7 a! y) T/ d+ }: p' e# \6 H
if <condition> then2 c {# q' j6 t- }6 F
<statement sequence1>;
$ }" s, U9 r+ z6 ^: v% i elseif <condition> then& I$ s9 U8 ^/ Q' ?4 F' L3 D
<statement sequence2>;
4 g5 ?9 x- L; L! t6 u7 I else
/ K% m0 {1 Y: Q. u& V d <statement sequence3>;3 X3 X+ E+ M# J! i; t6 p
end;
. z; i3 w+ I$ u( N% X如果分支比较多,用:
3 B3 w' F$ u, V9 ~$ { inspect <expression>
) y9 U" u: e8 h2 k8 t! P( @$ D when <constant_list> then
- \; ?- S q) i" G0 {( ?# y7 ^ <statement sequence1>;
0 s3 q+ g$ w/ E+ h& G/ Z6 { when <constant_list> then
, }! G X! B, z, s1 w! }! o, r2 C1 G <statement sequence2>;( B! S) J4 m6 z
...
' b+ P6 w! W0 d! O1 z- p else
+ R' W0 l/ @: K7 v) W! r9 Z <statement sequence3>;
( W0 i3 K& P" s6 O+ f$ `end;4 c5 H! c: u/ _- i! ?
' {+ R0 L8 ^1 k! H/ P, U2循环语句
; b5 A) b; F6 [' D# V (1) from <statement sequence1>
1 z. g0 X6 @5 ]" @' l9 T until <condition> loop$ q' |# W9 E! C7 A& k! c1 z" W
<statement sequence2>;
: Z/ ? }! N2 m2 R end;" q* Y' q% [0 L5 m1 D
(2) while <condition> loop4 y* [/ V5 i; Y" W S$ T* i+ \& }; L% c q
<statement sequence1>;1 Y1 f3 s& ?! M6 `( Q
end;* F3 M# }" T7 s; s
(3) repeat
& L' j" ~7 a; C+ O2 k7 h# O! W <statement sequence1>;1 |6 B9 }* x* |: h# p. K1 `+ y) {
until <condition>;
) }" A8 _5 ^2 J( h7 K) H* x+ a (4) for <condition> to <condition> loop
# e: W% I6 o5 w) l" n% E <statement sequence1>;
4 K. t* c N* J; j. U0 W next;* E; U( J G" Y: @( o4 j" k
3中断语句: |: E7 j0 G6 t: Q* N n
waituntil <condition> prio <integer expression>;
6 A9 y( e! h, u$ V, Y J" W/ I+ {! g. U# J* Z0 x
: Y- S' W0 `7 R R; H& {
以上为常用的函数!% [8 |" S0 F5 w* y5 v9 }# X# s
还有很多,如有需要我把资料发到你邮箱里
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