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发表于 2012-11-13 08:48:12
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1判断语句
) v3 l2 \! X6 d% ] if <condition> then! z" V( F- p- [8 q! W- y+ T2 j
<statement sequence1>;! B/ [! e1 G: G3 q9 T ^
elseif <condition> then
- e) B; j1 ^$ Z2 ^) P6 z8 S <statement sequence2>;% B! F; Q9 P1 _9 E- K
else ' A( W2 W* g- q1 Z4 X
<statement sequence3>;0 M% d8 X0 f0 m
end;
3 F& }$ ?) c7 B: U4 u! y n5 v$ v如果分支比较多，用：' ~ |9 g8 F5 j* O
inspect <expression>
$ L3 Y" Q( E( w) ?4 J when <constant_list> then
: _, I! b& y% e9 S5 B/ c* g <statement sequence1>;
. L; A/ Y6 a3 z. n- q9 S- i when <constant_list> then! i: u+ J. r% w C, | ?, q
<statement sequence2>;
+ x. \* [8 A8 d: m+ [ ...
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<statement sequence3>;* `1 ~" c2 _3 v- y" c- q9 x
end;4 c9 y# j1 v* K3 ~! }
+ J. u3 M* S0 S- o2 Z& A* t+ M2循环语句/ B8 P: A9 j: {# P
(1) from <statement sequence1>; N' Z. |4 F& _# U1 ~
until <condition> loop c- X. T6 S8 L7 \
<statement sequence2>;8 O Z1 G: b* e1 W$ D
end;
* _0 [2 o. G1 K (2) while <condition> loop
/ P4 }- J8 O, q <statement sequence1>;& J, c7 |0 p- x' m; u1 J9 x
end;3 |2 v* e6 P5 o/ |+ x- Y9 z
(3) repeat " g/ o: Q( ?; w# x
<statement sequence1>;
0 C, K) {5 ]- H( d7 X- g/ Q' P until <condition>;
& h: b5 k) ]) M' P (4) for <condition> to <condition> loop6 z" l/ w+ S( V
<statement sequence1>;
q7 R+ I# o" E/ Z+ m8 A next;# m6 i8 p1 a- g, {: H8 W
3中断语句
% ?' L$ |4 g) l) |9 K3 Y( N waituntil <condition> prio <integer expression>;
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9 ?2 {% P% Q ~/ c; j& N以上为常用的函数！
. d8 c f( P4 Q还有很多，如有需要我把资料发到你邮箱里
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