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发表于 2012-11-13 08:48:12
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1判断语句
. U0 C) t) V' C" m+ A if <condition> then. Y* X+ \3 e( x |
<statement sequence1>;% c5 `+ S( o3 r2 R% L" J
elseif <condition> then
0 q. V% Z% a1 ?6 N1 v( i <statement sequence2>;
K% ^9 b# r: ` else 7 ^2 u. T9 S6 w
<statement sequence3>;
) B! @2 i/ g( k' D% I) T end;
' { i. e9 B4 c9 h5 g. N如果分支比较多，用：
7 _9 q9 }, b2 s- ]/ w4 ~( R inspect <expression>
) ~. ^; A; R' w* J: V, s when <constant_list> then+ F, d# k A8 Y) N- O
<statement sequence1>;
0 k! z4 a9 y, ]# n9 j0 ~ when <constant_list> then% V! N4 ^, {, S. n8 v7 p) p* _+ R B
<statement sequence2>;) v7 s6 q [ _ O! y( L
...+ \; s4 H2 J' n2 f
else; ^- D0 f. r: Z( e+ h1 o
<statement sequence3>;/ O8 W% X2 l+ i0 ^% s
end;
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2循环语句& N8 }' r. }: S# G1 g7 l, ?4 s4 \" a
(1) from <statement sequence1>
7 O, [8 a- r, R! i( B& S! q: I until <condition> loop4 {% e' e! j! s% b( u' u2 z
<statement sequence2>;2 L4 c L7 d4 z/ A+ O0 o
end;/ z8 { ?) m8 f; S
(2) while <condition> loop
: q, s' L6 X1 Y- l* H <statement sequence1>;
# n: l( Y4 u/ p( D end;
# A6 e8 n. F2 D# b- d (3) repeat 0 M- s$ Z P$ V3 a, I% [
<statement sequence1>;
- ?! |5 [# S. h: |; ]+ m until <condition>;; E4 z7 X- t/ ^+ a
(4) for <condition> to <condition> loop- |$ n% @. I' B. }4 F9 w
<statement sequence1>;; J' R) H* D5 t# t' H" M
next;
( i& x- G' u* p/ \8 v3中断语句
! E, f/ \; C2 Z waituntil <condition> prio <integer expression>;
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以上为常用的函数！3 C( U: M, s3 S" d% R- ?+ d d' W) R
还有很多，如有需要我把资料发到你邮箱里 u- b8 k" s. g
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