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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
! I" _ Z, Y l. P if <condition> then
0 y! o+ p2 g$ O b2 M ]0 | <statement sequence1>;
" S- V# B3 r' [! s& O elseif <condition> then
2 h' P3 N9 G+ C1 ?7 ^6 V. Q% J$ W <statement sequence2>;
" w4 V$ {9 b+ U+ ^, U$ Z3 Z& n else 6 ?3 F f4 y+ I' R+ \) F2 f
<statement sequence3>;* R; [% m! g* ]6 |
end;
% ~3 Y" h9 F0 F% v7 {7 y! @如果分支比较多,用:
9 Q& x' c% E* D" G+ H5 F4 b inspect <expression>& u( i! j7 q0 x- \! [% _
when <constant_list> then2 C, R* N% s$ s: v$ q3 p
<statement sequence1>;+ S- m, A2 a2 J6 Q; m0 L
when <constant_list> then
8 Q4 F$ f3 f( l! D" Z' b y$ W' G <statement sequence2>;
$ X( X; ~/ k5 ~# t7 M: I ...
" H7 d5 s2 R( \( f1 l else
! Y% ^. O9 C6 o U4 w& G <statement sequence3>;
3 e7 E4 E+ e# J, zend;/ i$ F1 l4 P- R1 `! P5 Y! v) z
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2循环语句
$ d1 d, G/ @" g% M7 c" _5 q+ g (1) from <statement sequence1>0 C8 a4 {1 R: b5 N; ^
until <condition> loop: f& {, S# y/ @' X; k' C6 d- ~
<statement sequence2>;( u, s; Y+ r' C6 W0 L: ~
end;7 t) w. z' r0 v& ?, T
(2) while <condition> loop6 v. A# }5 L- I% ~! b
<statement sequence1>;
W* `6 M2 `& a) o end;
6 A1 D$ ~: L) k( [ (3) repeat 2 U% |! e" q8 @ b% @
<statement sequence1>;$ @2 z N) ~7 Q
until <condition>;
9 |! U: H1 |, q- y7 S (4) for <condition> to <condition> loop2 C/ W0 c/ U% ^, O7 K& o- i
<statement sequence1>;% P q9 W' X* q- y9 R7 E4 e
next;: ^' i+ P$ ?( x4 N* o
3中断语句+ Q4 \: Z0 P2 B, f Q3 G) `
waituntil <condition> prio <integer expression>;
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, `3 ? ^" w) u: b5 ~( G: d' C# b+ q以上为常用的函数!
2 ?) `0 K% x5 k还有很多,如有需要我把资料发到你邮箱里 * H9 d# ? e8 W$ z4 m; r8 g% V
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