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发表于 2012-11-13 08:48:12
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1判断语句
; ?# J. s& l* g5 ] if <condition> then
) d: g; Y c8 \# e d1 B, L <statement sequence1>;
' e+ e5 U7 f0 ?& v9 A$ _6 ]! ^ elseif <condition> then
; i# l7 v+ G% J, N4 l: ]+ {' R# Y- P4 q <statement sequence2>;- P9 @9 ]# P+ W m
else & s5 B3 W j: ~+ _ z" E
<statement sequence3>;
+ _4 h3 j& w* w! ` end;
/ {3 p% ~- n" K* Z4 s6 r3 [: l如果分支比较多，用：
/ i, F$ ]3 C, \" w1 | inspect <expression>
2 R. n5 a6 u& @ when <constant_list> then4 T# J. U1 v8 p# |/ T+ d
<statement sequence1>;
6 f/ L- ]. [, |$ g+ | when <constant_list> then
1 O( p* f, }* U. W. K' @3 h; Y <statement sequence2>;
. |1 A# F4 Z+ F c5 N ...
/ z3 I0 A9 B6 {7 U/ | else; ?* u9 a6 F2 U2 M% b4 n) D
<statement sequence3>;( R) [. ]) |7 n4 W" f$ z) U7 }
end;2 e- E' _( ?" N
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2循环语句
% J. i5 `/ M! F3 x9 K* r9 m (1) from <statement sequence1>
' }+ K7 d1 l# F& @$ U until <condition> loop' ]: l# p/ T6 T3 w1 q9 ^, j
<statement sequence2>;
% g+ k# A! r" t& r+ W* C6 C: E end;
+ o" O2 K- y$ Z/ Q (2) while <condition> loop
! \0 Z$ u9 ]5 W- M& ^ <statement sequence1>;) D! N, Z' }- G X
end;# V" @( K5 d3 u* u0 q! J
(3) repeat ) x: z! L0 B" p! M; {
<statement sequence1>;0 A! p& A0 q# Z8 C! P4 P
until <condition>;
" y1 ~. t" t* p! M! G9 T2 C (4) for <condition> to <condition> loop2 M( x0 o' A- L9 L# @
<statement sequence1>;( a/ F( h/ ~" Y. m- S5 B
next;# W9 a2 X' Z: ~& N7 |( Y) j4 u$ q
3中断语句+ n( Q, N N( H1 k% V
waituntil <condition> prio <integer expression>;
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以上为常用的函数！2 J# z2 S3 t( O. Y
还有很多，如有需要我把资料发到你邮箱里 \8 P4 t* H1 M0 I0 w7 ~
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