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发表于 2012-11-13 08:48:12
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1判断语句1 N) R; S0 K# ]6 c0 O
if <condition> then
5 S) i1 a2 M/ M0 L1 T# Z" g <statement sequence1>;
$ n6 s1 H$ U5 ?3 \* h& `2 h y5 ] elseif <condition> then, F1 U6 \$ X# c c6 G
<statement sequence2>;4 R J* X; B: w: l. x _, s% s0 {; B
else
2 a& x# d/ D n5 f' m <statement sequence3>;
. N& Q7 c; D' u/ d3 i: O* x; ]- p end;
0 E2 T7 d3 M) a+ C1 Y- h如果分支比较多，用：
" `5 x1 ~3 _+ A/ J4 |6 r inspect <expression>4 U/ J& _& t. {+ g8 W3 c' m4 D
when <constant_list> then
$ y" h1 W- i3 W/ j4 Y3 B L" r <statement sequence1>;
" M1 e8 F, Z4 E( b0 D9 ]5 d when <constant_list> then
, x, Y) u/ I; X1 A0 B- b <statement sequence2>;
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else
i6 L' {; k& _* G" f7 \$ r <statement sequence3>;
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2循环语句: }6 `% c6 q* u4 C
(1) from <statement sequence1>
0 [. n, s2 I. X until <condition> loop
3 A- o, H; a- A* h) ~ F6 X2 J <statement sequence2>;. g/ b5 o6 _* K( M9 P; ^+ w$ A
end;
% R7 [7 q! q$ k+ ^0 T# C) O (2) while <condition> loop
u# A8 ^ f" v5 {8 X <statement sequence1>;( d/ e/ @8 [( p& v! f$ m
end;7 A7 _0 @+ W7 D
(3) repeat 1 s% U$ A! D& O4 J$ c4 q: f8 S. k
<statement sequence1>;
, O. i% X6 c( R. `2 B( B( v until <condition>;2 U* P; ^' c4 V; a- b/ Q0 m5 ?
(4) for <condition> to <condition> loop
; v7 A, z( T Q0 d) b <statement sequence1>;
2 W4 }: H# P& V next;
- d/ S1 B- J$ S; U1 N5 t2 L9 [3中断语句( \) g/ I7 w3 f" @ p
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
8 Z$ L# o4 D- |& _; o, [& D8 F5 J7 P还有很多，如有需要我把资料发到你邮箱里
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