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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
" c$ }! w0 q1 Z0 W. ^* C if <condition> then6 a$ c3 |/ W6 x
<statement sequence1>;
2 i2 r7 z# {3 k0 C elseif <condition> then- q, d' N& f0 s0 {
<statement sequence2>;# J/ }* c( A6 V" i9 i
else
7 c6 n, |2 p, v. S2 E! C/ }5 s <statement sequence3>;) \' u0 b' ]$ }5 q) A
end;
( F. {' b: J( E如果分支比较多,用:
/ y/ o# x& x0 |) ~: y4 y inspect <expression>
% T$ T; S# b7 x: j when <constant_list> then
( b) {+ a, C) D) t, c* v' F* w <statement sequence1>;) W% m& D* ?( n" m- M5 W
when <constant_list> then& q1 O+ W+ i9 L; ~- Z+ x
<statement sequence2>;
# |" e5 v u3 F) V ...
2 h5 n4 a& C. {9 Q$ v else7 w' R, V7 t W# t, ?
<statement sequence3>;# |' J% G. v. f# J- ^. R" ?
end;3 A. P2 e5 y O; I
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2循环语句
0 ^% {/ ]' H& k9 u1 N2 h* j (1) from <statement sequence1>
! P% ?8 N. n, Z( B* ? until <condition> loop9 k5 b" M- ]4 o. D$ F
<statement sequence2>;
( }; j# W: ?6 H end;/ A/ f- r% F9 f, R% d; [+ H
(2) while <condition> loop
8 J8 S6 |) W" J/ n5 \2 N <statement sequence1>;6 E! D. ^) E# H, r R8 K
end;
4 l! r }5 t0 a, X& g& |* I (3) repeat C7 D# X: ^ q& p5 x+ H
<statement sequence1>;
1 `# _. w. e2 R9 [1 b, ?, W$ q; v until <condition>;, V1 h/ O$ P* Y$ R E: D4 M) J e
(4) for <condition> to <condition> loop! Z2 E9 U* i/ e p4 h
<statement sequence1>;
( ^, ~! Y) Q* @9 e* [* f next;2 N8 n" _( x* R6 l ~
3中断语句
" S2 D! [; I; Z/ v9 Q: t waituntil <condition> prio <integer expression>;: G8 U& b& e" X. K
: c/ H) I* i6 \. U" R) g J
$ e+ Q+ q% c3 V6 R# a# M7 _以上为常用的函数!. H! R: [' k" [$ Q
还有很多,如有需要我把资料发到你邮箱里 8 |! p4 u! H( y. E& @) U7 y3 ~
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