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发表于 2012-11-13 08:48:12
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1判断语句
# x$ T( c: t% m# j8 m if <condition> then' N! @8 E0 n) C M5 L" K9 N
<statement sequence1>;
0 h9 Y) O8 d( s6 P8 h elseif <condition> then
2 ?: i) Q ]! ?+ E <statement sequence2>;
7 {+ h# S% |' s) G% t. f else
% c4 k* p, M7 ^7 `. j* x <statement sequence3>;0 a0 n" i$ b6 l- E. [6 p% v
end;+ E1 V6 j# p& D( z
如果分支比较多，用：
' L7 A0 N! c% m8 p% @( N( J* P, U inspect <expression>! A5 r" b; `+ w! L& k* e, y
when <constant_list> then1 l1 R1 R8 J. s' m6 ^/ a' k
<statement sequence1>;& @* _! [$ j* B1 J+ P8 F
when <constant_list> then# t" B ?1 k6 w
<statement sequence2>;3 n8 s/ u7 j- X! Z; [; v- @
...
3 B0 y% K7 G9 T% { else
/ S' R8 h* w, {: |/ C# a. P2 o% } <statement sequence3>;( M2 h, T5 q* e. E" `6 a0 n+ F
end;1 ?2 S) v7 g# C; Q, z" b2 o
9 s- v/ d5 I' E: f5 G' ~, s2 @2循环语句
% ~ B+ R% u0 H5 r7 e (1) from <statement sequence1>
/ J2 `, W. j7 R* \- @$ ~2 | until <condition> loop6 A* x0 a# ?" {( x4 k
<statement sequence2>;. B \- u$ W6 S! h( s( @1 c F) L' ~$ `
end;
2 _" i8 A9 }+ L6 b) F9 c( { (2) while <condition> loop
( W( k( `9 g. K$ X <statement sequence1>;
" h+ a2 [2 u# {0 ~3 T3 ^. r# [/ { end;
! C# z) d+ s( {0 r; ^ x: F (3) repeat
4 W7 u5 H/ `8 ^; D3 ?4 R <statement sequence1>;7 Z% U3 N3 d6 I; J
until <condition>;
* d! k) ?. U2 ` (4) for <condition> to <condition> loop
, j' E: T. H: }" ^( \ <statement sequence1>;: H N `5 j2 B* [1 r( p" d4 |
next;
l, _9 m. d4 M: c3中断语句
6 ]. a8 D7 G- s1 T6 x$ a- D6 h waituntil <condition> prio <integer expression>;
9 g5 L' K: Y! }. Y l7 k+ F# L5 t3 E) ?% ~5 X( p
5 N- V! C1 P) ]. ^: r7 c/ l/ e
以上为常用的函数！
: u- g+ [9 T. M- _' H F还有很多，如有需要我把资料发到你邮箱里 ! c: R S3 [/ _8 k5 u: s
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