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发表于 2012-11-13 08:48:12
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1判断语句7 B6 L! y) |: y8 Z3 O* E" H
if <condition> then
& ?; O ?4 w% L- B <statement sequence1>;
. g7 A. x: B& V4 x' { elseif <condition> then
, j7 i; a2 D) D& G4 b: u2 K1 X <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
r0 S/ T9 k& d4 A# m- R: t$ t inspect <expression>" }. M5 s+ n. K3 M1 z' n! z
when <constant_list> then: Z) L9 P) o H0 }& I, ]: C4 c
<statement sequence1>;
5 P- U/ r6 [7 x9 q& u when <constant_list> then
" r2 n/ c. B% ]) S( W6 | <statement sequence2>;5 W1 J' q8 M4 @
...5 J, z2 L1 F; @+ {$ o
else
) B- i" w# ? M* V+ x R g <statement sequence3>; U0 B) ]+ m; ?) D) y
end;- z0 g1 n, A- t, S I4 M
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2循环语句
% S8 j. D# X3 E m: N (1) from <statement sequence1>! b" j/ z6 ?2 k4 U
until <condition> loop4 E3 i: s& _( l1 }
<statement sequence2>;( K- q3 N, s* E6 H6 G0 l# G
end;
4 ^* Z1 J6 X4 s; d0 g# I (2) while <condition> loop) ?& }1 ?, `# i) n1 y$ Q
<statement sequence1>;. V( |3 v! m* {/ U4 |' I6 r2 i" C
end;# {; x/ ?6 P4 v
(3) repeat 0 V( n8 X- s0 W+ x$ C
<statement sequence1>;
: W1 l: J( O9 _3 W" x! R: w, U- @ until <condition>;
7 u/ ?0 o/ p/ G% p9 h8 R (4) for <condition> to <condition> loop" E, b& O: B, q& }1 V# t9 J
<statement sequence1>;
( Q7 a) _3 r" A next;
! t p0 y4 R }9 V3中断语句% U3 P/ _. y" t
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 q0 J& z4 m- a3 y& Z6 q% X( B# m还有很多，如有需要我把资料发到你邮箱里
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