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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) `/ O5 K2 y, ^) y' \; `
if <condition> then$ @- c, r4 B. O9 {
<statement sequence1>;
& y. N4 q( W8 K elseif <condition> then! F n; H/ J3 h2 g! s
<statement sequence2>;
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<statement sequence3>;
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3 C/ z9 o- i% _/ O0 I7 a如果分支比较多,用:! g( C: y: F( d2 N5 z& g0 o
inspect <expression>
( {2 D# i/ w: w, U when <constant_list> then
& m# s& ?0 Z+ z& c <statement sequence1>;6 e, C' f/ S- \9 z* E
when <constant_list> then% [* A7 Y7 N* t+ ?9 p
<statement sequence2>;
; x' U' @3 [+ M# a$ n3 h' I" s ...
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<statement sequence3>;
% Q% y. P# Z& x( w5 q/ @1 y& Iend;
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2循环语句7 f) n; j4 X4 ]. J4 j- S
(1) from <statement sequence1>; { \% t9 U3 M; u% C
until <condition> loop
0 |8 X, d3 n4 M( i. w <statement sequence2>;" d$ ?) h& q/ G7 l' e c0 w- p
end;
. C: O- I; t! l M# ~ ]: S- z (2) while <condition> loop
" R6 Q/ T! | p. f0 A& i- H <statement sequence1>;) m4 t1 y0 E+ W$ Z0 m2 l
end;
( E" K5 C& k' `: l N7 r# }: x (3) repeat
) \$ V* i/ B- U7 S7 [' o <statement sequence1>;$ j7 ^ B) z" F' ~7 l- V$ Q
until <condition>;
% l8 Y0 i* E, `: e+ y (4) for <condition> to <condition> loop7 V) M2 E. W H4 C! [$ a" f
<statement sequence1>;
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3中断语句
& a$ D# Q+ Y0 j! w$ I f; ? waituntil <condition> prio <integer expression>;; [" Y* j/ }, O9 e/ @9 E9 d
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以上为常用的函数!
! Q( x2 I! j5 N4 D/ A e还有很多,如有需要我把资料发到你邮箱里
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