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发表于 2012-11-13 08:48:12
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1判断语句
9 m# }+ t, g) e8 ?4 x5 d3 | if <condition> then, N# J ] t5 z$ \+ V
<statement sequence1>;
+ |) M X: N6 _1 K' a3 ?0 A3 M elseif <condition> then& u. ^5 r7 L* E8 o9 |1 d
<statement sequence2>; ]; j+ N' G1 o" @( k
else
5 ]/ s3 K3 l( S0 N& n$ Q, w" w: k <statement sequence3>;
) ]0 i5 j7 K. U% w A( y end;8 J; S$ F; Z9 a7 J( `' d. Y, a
如果分支比较多，用：7 R( \! o+ Q! \
inspect <expression>5 p! y! H0 V S
when <constant_list> then
# g) X, I( D: U3 a0 g6 ~ <statement sequence1>;+ G. N- v0 ^( c! B. m5 _
when <constant_list> then2 {7 ^1 D F6 Q& e
<statement sequence2>;! d3 o) M' w6 B3 E- S* ?
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else
! g2 W3 z- c3 ?! _( f, l% w3 U7 O <statement sequence3>;5 K3 t4 A# B! s6 w( Z
end;
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2 w* V7 \; ~: p2循环语句
0 ~( O" e0 x9 |; |( M! i7 P1 [ (1) from <statement sequence1>$ j1 w4 l E2 L3 r' \& N
until <condition> loop
7 \- \5 X/ B N/ q <statement sequence2>;
' b- h) [9 U6 v# A- r7 G end;8 V6 t2 i, |, }2 d# ]5 N& l2 h+ y2 C( L
(2) while <condition> loop
; T) {4 s' v# s) R <statement sequence1>;- ^; B7 Y5 R& f% h% x
end;9 I: J1 \ x" W! y; p8 n6 p& a
(3) repeat + O$ \7 P: C8 }+ f5 U$ P
<statement sequence1>;
& z3 ^8 C, p, _. O8 K; N until <condition>;
" [$ `* J/ _5 v (4) for <condition> to <condition> loop
% ]9 W, A0 `% t7 d* |- b <statement sequence1>;
4 \0 k4 s _1 @( D- |6 Q next;
& x, E6 j- A8 _# M8 n! X! p3中断语句/ \( u- | n4 J7 K& f* ^3 x7 a
waituntil <condition> prio <integer expression>;6 K9 d: f; D3 f: t
+ p1 b; \5 O1 `, _
: q9 `' t7 h6 \' s" c$ t: W以上为常用的函数！
7 A- B2 Y0 x4 a, @, K |还有很多，如有需要我把资料发到你邮箱里 - n5 V+ Y! ~6 ]0 U8 J: i
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