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发表于 2012-11-13 08:48:12
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1判断语句: V ]# b s) u# _2 h# U* o5 D
if <condition> then
1 d; {; k" O8 Q' A# D <statement sequence1>;8 L4 m$ H: j1 R
elseif <condition> then
! l8 v1 Q* V' R) [. g1 h: K <statement sequence2>;
$ J. \8 c$ g2 v: v m else
5 t8 Y0 {- @+ `, I <statement sequence3>;
8 Q# [2 b' D N end;
( w7 s: j# p2 p7 u, A; C( G* D如果分支比较多，用：, I3 [6 q& W/ ^7 e, m
inspect <expression>$ d: J. A+ {: \
when <constant_list> then$ B8 F0 }; X* V) a8 H9 \
<statement sequence1>;
* Z8 @" f" g% r1 ` when <constant_list> then2 o' X* u( q0 n* i2 C0 [; ?
<statement sequence2>;
! h# K$ k& E: N8 V0 v0 u# x ...! I8 {- f, s2 G( q
else5 r/ E* E' ~5 H7 J& @
<statement sequence3>;
" E' W( k. I, v( iend;
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; e$ p. e i7 x2循环语句! v/ K0 [) q1 X% }- k0 h
(1) from <statement sequence1>) J# k( j5 K. O: n' W/ I7 T* |
until <condition> loop
2 Z( e$ C; }1 e/ M <statement sequence2>;
) S8 q' J0 y, X/ w6 z end;
) e# I- I, V! H3 q% R (2) while <condition> loop
0 X& ^" a& ~1 ]1 D, E: \ <statement sequence1>;
/ @) d* [% P5 X6 u6 V/ L0 p$ n; ^/ J end;
9 B; d. D- z1 ]" j* E (3) repeat
" W8 ]4 G/ R8 g <statement sequence1>;
+ b/ y; W. p; o/ R until <condition>;9 ^" V' p* X; d0 X% j. A
(4) for <condition> to <condition> loop
- q' O( N. |" O. l2 B7 R <statement sequence1>;
8 l2 ]1 ~) ^6 Q7 u next;
% N! [1 d" W/ |! ^/ T0 S4 y1 C. j8 @3中断语句- y6 L# o4 ~3 t; ?' P# T
waituntil <condition> prio <integer expression>;
Y. {# h& a+ k! X
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以上为常用的函数！
" |. P5 }2 M. @+ U) ]还有很多，如有需要我把资料发到你邮箱里 : r3 g: q6 c; w3 F# v2 D" D/ |2 w$ s
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