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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句. w2 @2 X; t9 w+ j, u9 K
if <condition> then, x/ J1 J7 b9 X W5 W
<statement sequence1>;
! m7 X, ?; b- \ k# Y elseif <condition> then
7 \9 N; \# }& F5 ~# C <statement sequence2>;. o2 T) o: ~3 a) R T P; z
else
2 h% u7 _6 r. |+ W x( G! @ <statement sequence3>;( k% W. f: h& Y9 K2 [8 T
end;6 U1 l7 Z4 I$ G0 L3 E
如果分支比较多，用：
$ u) D* V4 K' V/ t& g$ a$ g" l! w inspect <expression>8 D4 i8 D4 p2 [4 s8 z
when <constant_list> then
5 [% S e, e( v9 V2 Z <statement sequence1>;
( @* P/ m7 T: ?. @, v( @0 l& ^+ O when <constant_list> then- `7 M# q+ N; ~7 A: i
<statement sequence2>;
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else3 b X, J- j+ Y8 u" C m" e
<statement sequence3>;/ o- _3 }# d! Q l" p( `4 }% } j
end;5 k. m6 p @3 c/ [' _ d
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2循环语句2 D3 Z8 W9 F! ~/ l- O
(1) from <statement sequence1>, Q1 n6 S) w% }- @% `3 d6 p4 z
until <condition> loop' i; W' j5 E1 _/ E- u' Q7 S
<statement sequence2>; v2 ^' e2 s) `" W5 i
end;
) N+ M) r1 l' u9 p) r" | (2) while <condition> loop" z* R# z) h, f6 @
<statement sequence1>;
9 d; `$ @( C% o. @ end;/ R7 `0 U& J5 e' R
(3) repeat ; J1 N& q1 W. W- e
<statement sequence1>;% I1 X! A. ^4 d) X+ I+ \
until <condition>;* P A, }2 M/ P$ r$ |' o6 m4 O
(4) for <condition> to <condition> loop. C% @) {, T0 m5 o
<statement sequence1>;5 h7 R' {- I% [/ [3 F
next;) P+ X p& q& d$ E/ s' ^/ R
3中断语句
1 u! N5 H) t* P" c waituntil <condition> prio <integer expression>;
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) R6 g+ q3 k7 q v以上为常用的函数！5 ?( [" I( Y i/ {0 j
还有很多，如有需要我把资料发到你邮箱里
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