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发表于 2012-11-13 08:48:12
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1判断语句$ N' l, d6 J4 H( H9 p, Y/ a
if <condition> then
8 u6 K: B9 d; o; F- t3 _& Q8 o+ I <statement sequence1>;
% @" r# C- N0 q9 i6 g, B# _ elseif <condition> then
1 l$ h8 |. s8 J/ R0 @% }: Z <statement sequence2>;
+ B. M' |) U+ v else 2 f; _7 C D; x
<statement sequence3>;6 y {. ~* p0 H5 v6 y! J
end;
+ {2 P9 \1 g. y! j) X7 X2 ?% K如果分支比较多，用：* @( D% j% O1 N L3 |
inspect <expression>2 u" _8 L* x9 S0 ?! |5 C5 i! N
when <constant_list> then A9 Q' K3 `9 h7 C* ?* l9 D7 a. C
<statement sequence1>;
; d7 F0 p. r4 B* P when <constant_list> then
. q3 Y7 i* q: W <statement sequence2>;
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else7 U9 @- j& Z# A* C
<statement sequence3>;# V/ `5 A) d* n
end;3 T+ ?9 s/ _ b
" h4 r) w4 |0 k4 A( a8 n2循环语句; u) J: y6 X, {- G
(1) from <statement sequence1>
4 ^$ @2 [- z: T+ m until <condition> loop' G' E- x# E1 ?0 a5 ?' ]
<statement sequence2>;
8 ?- l% B! K7 J' `6 c end;4 e6 h/ h( A* J, c/ t4 }7 _' b' s
(2) while <condition> loop( V# f y2 B$ O
<statement sequence1>;/ M' ]+ O; y0 G! O1 X4 Q
end;- _& P, A* c; q& H
(3) repeat
6 ^# N! R( X0 }+ K" W. M' s <statement sequence1>;
! U! A5 n) z" z4 q( `6 ?' q4 ] until <condition>;. m6 A7 u" {% R K# k) K
(4) for <condition> to <condition> loop; p" R! i3 D; E; P9 y
<statement sequence1>;7 `. z) ]( l: i' x3 q* n
next;7 }& H. Y1 z: i3 A% ~
3中断语句
- T, r' {% ?; l! i. [ waituntil <condition> prio <integer expression>;* |7 w: S; \1 V1 x3 F+ ~
_) L3 X; J! }! _7 g0 k. @. M- P
1 u& ?9 x( c: Z- Y7 ?/ k- r2 p以上为常用的函数！
4 w1 _5 K! K5 \还有很多，如有需要我把资料发到你邮箱里
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