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发表于 2012-11-13 08:48:12
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1判断语句7 {4 @4 B% s, }. I
if <condition> then& N* H7 s2 {, [: m8 t& h2 u
<statement sequence1>;
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<statement sequence2>;
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<statement sequence3>;7 l" q. n$ J% m) k1 c- b+ ^
end;) G" s0 a$ u8 w7 N2 h8 z3 h: @3 A
如果分支比较多，用：
; l. {+ D& v' c. k inspect <expression>0 ^2 a' j7 D* I
when <constant_list> then/ h; @6 y" N# O q
<statement sequence1>;1 I5 {: b) ^2 u X
when <constant_list> then' w( N/ r7 N# X+ T: B/ z
<statement sequence2>;8 ]# I5 q' f4 ^/ O6 \
...+ x. u: a8 ~" N
else
5 A9 N% Q4 C5 n0 Q. { <statement sequence3>;* s) N, y& r7 H8 X; k
end;* s6 G: k3 P: A5 j1 ]) v
; ]- S7 l1 c3 O' J9 C8 x- N2循环语句
) h5 Y6 c) e% ~$ G" K1 n (1) from <statement sequence1>0 y( c1 k% b' \; M- C
until <condition> loop0 u$ M1 ?% t/ X- W- @5 n
<statement sequence2>;" i9 }9 y) L8 J1 \ \- |3 ?
end;
2 L; k3 s- y9 U7 ~0 ^ (2) while <condition> loop) W8 e1 i8 d0 |5 x g& D$ \
<statement sequence1>;
0 A# d6 m/ F0 Y. A8 [ end;
0 i. i& f* X9 t2 j5 u8 R (3) repeat 4 _2 B* a+ L& f& e9 f( D5 t# \
<statement sequence1>;: p' z! N1 P9 x; D( b
until <condition>;' T2 G6 B% o2 J) n/ W/ F$ }
(4) for <condition> to <condition> loop
. |* _3 w( [( \- p( {- j <statement sequence1>;0 t: V0 m' l5 B* y+ H& K
next;
4 z: C; Y% z0 O0 z3中断语句8 K- @; t e$ f7 V& R+ ]
waituntil <condition> prio <integer expression>;
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4 W8 d8 Z m- @+ J; @ z以上为常用的函数！& ~9 j) h& L2 c8 p% e4 L
还有很多，如有需要我把资料发到你邮箱里 Q% d- i f' @7 K. I
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