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发表于 2012-11-13 08:48:12
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1判断语句
5 i! ~" ?/ ~/ Q0 T* A. H if <condition> then
( Q; x2 y$ L* @; g2 C1 i <statement sequence1>;7 x* k4 T& `8 k- U
elseif <condition> then
% g2 E3 q* ]; X' V <statement sequence2>;4 m3 H2 ]: Q% u/ d. s
else 8 R% z d* p3 G t4 E5 e
<statement sequence3>; c' M" Y1 S& ]# B1 `$ q
end;
" t6 w% Z* D% n8 _8 l如果分支比较多,用:. j. V: c: N: j6 P& w
inspect <expression>
$ y9 ^5 |+ F. P6 T2 k4 o" m when <constant_list> then
+ W" D# |7 G9 b: r <statement sequence1>;
7 I8 i `+ \3 A4 r& o5 o when <constant_list> then5 b3 x) i/ ?7 Z$ W
<statement sequence2>; b# w6 _% V' `' z
...7 u8 ?9 x7 \ Y: {
else: R! ~8 ^ Q/ s. P# t* u3 f
<statement sequence3>;
) n4 K, N' p" D M2 Hend;
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2循环语句
' F/ G& b7 `1 i; h2 x (1) from <statement sequence1>
) r2 o0 i& f0 |9 V until <condition> loop
" c7 {- P7 Z* Y- ]' D, K _ <statement sequence2>;
; F8 ?1 z8 X2 h" u. }& D9 N+ D$ V end;
* Q& z/ Y2 U" W. X, q (2) while <condition> loop: S. t8 R+ C/ r' [5 c$ [
<statement sequence1>;
: n4 N0 z- B0 v7 _ end;
" O. ~8 @/ o" r2 g }6 ^3 Y (3) repeat
7 Q- [5 b" n/ ]$ r <statement sequence1>;
7 U3 S9 Z2 i2 Z3 q. D$ Q until <condition>;
. n$ c- ^- z4 Y H1 q (4) for <condition> to <condition> loop
! r2 S- P+ p% F( J" } <statement sequence1>;# f4 x' x8 @$ b% X, W& x
next;
! P4 L+ i, f5 v, M, s* r8 P' j3中断语句
. e& L1 I1 p5 O1 i5 w. Z- V waituntil <condition> prio <integer expression>;- ? W( F2 \* Q. \* m4 g
& k: w- `5 g; k
o' o9 U: H. ?. W以上为常用的函数!4 J! h3 ~/ e# W5 ?/ d3 P
还有很多,如有需要我把资料发到你邮箱里
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