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发表于 2012-11-13 08:48:12
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1判断语句* ?$ r$ J) s Z0 f5 T
if <condition> then
# R2 J' s k2 P7 _% S' } <statement sequence1>;5 N5 Y7 P0 ~4 Z/ u, p w
elseif <condition> then4 C$ F( ^. l! `, Q; q1 l
<statement sequence2>;9 a, s# E$ q5 h% `2 i
else
4 c. U& E6 l2 C! R <statement sequence3>;
9 M+ f: q2 R4 ]% O) B/ a; Z end;% t, f' r' U5 V, V- r% n
如果分支比较多，用：( ~# }0 s7 {! e/ Z" `5 Q- y* Z3 j
inspect <expression>$ ?( c/ k# g m1 k8 k
when <constant_list> then
6 h8 Z0 x2 L5 Y9 O5 f <statement sequence1>;9 p% Y5 Z/ z$ \+ U
when <constant_list> then
* ~; o7 ?0 Z8 Q/ u% V+ U. y/ k <statement sequence2>;. Z9 e4 X @# N9 n
...+ a, W* t* o5 r
else
# s" Q; l; U# d, m- t. ^ <statement sequence3>;
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2循环语句
5 k6 D9 Y, [1 ]# X% y8 U: s (1) from <statement sequence1>
/ c) T& \+ y0 w. p; T r( D( B6 k5 D until <condition> loop
5 f9 r$ p9 ^4 i% g <statement sequence2>;
$ \0 M# {$ x4 k- p3 ^/ X end;
$ J! [; G2 i; U2 ]! J (2) while <condition> loop
9 |5 Z, ] q) | M8 D- Q9 }- t( x <statement sequence1>;
! A7 M* C* `: f T end;9 O6 A* r, q5 s% @
(3) repeat
& ^: a2 |) J% H6 ]4 m' i2 W9 l; j" f <statement sequence1>;
7 L- \1 L; C+ P; `, ?3 m until <condition>;# `' ~; l/ [. }& C' y
(4) for <condition> to <condition> loop
/ G$ Q1 T1 Y# I& I <statement sequence1>;
9 Z3 f6 G) ]' X6 K+ f9 P0 H next;9 L4 f g& L+ L! Z* V: u2 K
3中断语句
" v3 O4 ?6 Q0 A2 h* m G waituntil <condition> prio <integer expression>;
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5 e6 I, E9 |7 [) _: j+ _/ \以上为常用的函数！6 T& K5 w" T* w% }& ?
还有很多，如有需要我把资料发到你邮箱里 # e% w6 @" J# X- `0 l
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