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发表于 2012-11-13 08:48:12
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1判断语句/ @) _+ K P5 k ]
if <condition> then7 _8 V) I0 F0 l" U
<statement sequence1>;
& E& L) D2 h1 b2 \4 s" r elseif <condition> then i( x a$ j4 X9 J8 t: C( X T
<statement sequence2>;3 _7 `0 R7 Y2 m
else
! x, h: D- S& c C: }4 j <statement sequence3>;! r+ I: a5 i; K' M2 Y7 R2 I
end;9 S9 h. F: l( S+ |$ w) S" C+ D
如果分支比较多，用：
) L: f* L8 \/ m, ?! \ inspect <expression>
5 u5 [ U5 r* R8 i when <constant_list> then
0 C. D$ _ n; { P. R <statement sequence1>;
& t% T2 ~6 i9 F2 Q1 w+ C when <constant_list> then* ^; Q$ N, j. Z" w% g& K
<statement sequence2>;( V8 h9 |7 ?) d9 [+ N
...; R) u I9 _7 @3 m% n8 e6 |- T! L
else' g X& h4 B+ z! ~* B
<statement sequence3>;$ Q( J, J# f# {' z" c
end;
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2循环语句
3 l- W: l! o- \* } m- h5 y0 p (1) from <statement sequence1>
: Y" \9 c6 G: n* ]: s until <condition> loop
( b: g. J7 L& \( ^, h! |0 C+ D <statement sequence2>;9 m' F3 r: |7 s9 |; M4 K
end;
5 A) N0 J- T6 P (2) while <condition> loop
5 ~% T9 s- t9 p <statement sequence1>;9 r$ v5 W. v3 S3 `* k
end;
) d$ i) I# m: E' U: A ^8 u (3) repeat 7 l& {% i( |- Y- X# A% }, M
<statement sequence1>;. y3 c& n2 S5 W
until <condition>;% t0 |' j% B' j& a z
(4) for <condition> to <condition> loop
8 r9 I3 X ~/ K4 w0 Z, i <statement sequence1>;# k3 {4 h8 c" a( B/ t
next;' u; \+ n m! X9 p7 D: |/ u$ O
3中断语句7 A" _1 I6 E. ~; L0 N3 X
waituntil <condition> prio <integer expression>;" e2 L& O r" ~& s* u( Z
- v4 i4 J" q' z. Q. [, ^
8 t. ~% h/ g/ X. w以上为常用的函数！
% S- I2 x% f9 N/ q还有很多，如有需要我把资料发到你邮箱里 g0 F3 L7 a' V( I! H
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