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发表于 2012-11-13 08:48:12
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1判断语句
2 O+ Y% @2 [6 W% X F7 b2 J% m if <condition> then
: e: {) X8 y. J. j4 P6 x2 n" c$ } <statement sequence1>;, T; v9 @7 r8 K7 @
elseif <condition> then
2 \; Y& ?' X% M5 |; k3 x' e <statement sequence2>;, h8 o8 y$ m# r
else : K: E, Z3 A8 E' p+ D! e
<statement sequence3>;
7 k H/ k. m; y! D& l. ~ end;# W7 [& q4 p! K( w1 Q
如果分支比较多,用:
6 m+ k' W8 \: ]; l: _, f/ o/ o inspect <expression>" B) C& }# H+ z5 F' x$ B0 l" N, g
when <constant_list> then
8 N% j; T: [( \* l <statement sequence1>;! ?6 F5 c/ R+ W7 J% ?
when <constant_list> then P8 r6 N7 D8 G1 Q, |! s" w
<statement sequence2>;- a- F6 m+ [! I0 b
...
4 b5 @& u9 Q* ]/ p) ]# D& U else
# G1 E* L: [9 v0 y3 p' S <statement sequence3>;
! T* d* h F1 X5 v- V# _* ~end;
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2循环语句5 O' [& v$ |* z1 n& f8 `3 i
(1) from <statement sequence1>
* f: U0 k. _- c until <condition> loop. U% f- A& ~$ }9 m2 R* s1 @
<statement sequence2>;( \% X8 {' ]2 W. q$ M* N% z
end;6 `( ~, N/ D, C
(2) while <condition> loop. [, _( _( a! e2 q0 W& f
<statement sequence1>;% _" Y8 B- W9 S3 n9 h7 u3 L
end;
7 l" h) O+ ^& X2 ?6 v2 f; Q# r* Q (3) repeat " w, Y7 m8 Q7 a6 v% B
<statement sequence1>;
8 Z! s* M0 e. }1 s until <condition>;
' {; A4 c; {/ q5 C( M2 r (4) for <condition> to <condition> loop6 j% D9 c' R( O$ A
<statement sequence1>;
$ y5 ^# |6 d( a) c next;9 a: p i3 i7 s' h7 F
3中断语句
; A1 q: [7 i+ z& P- K6 a waituntil <condition> prio <integer expression>;
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以上为常用的函数!& r2 K; J: \* f P3 |
还有很多,如有需要我把资料发到你邮箱里
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