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发表于 2012-11-13 08:48:12
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1判断语句2 b- T' o0 e. ~: B
if <condition> then' J4 d8 U, t5 y4 i3 s5 z) q4 J' B: z
<statement sequence1>;0 F/ J( P% |" _& p0 p2 T
elseif <condition> then
/ o) m+ f" T6 T+ z# S3 S <statement sequence2>;
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<statement sequence3>;
; F2 w/ s9 s d" K+ i2 ?. p% g end;
+ G2 x" T5 l) Y3 _如果分支比较多，用：/ f6 x5 q+ _8 w1 n
inspect <expression>( ^! z. s7 u9 ~- S- `; N* p* ?0 U* H
when <constant_list> then! P# C( \5 ~( Q! o8 G! D
<statement sequence1>;% ?! S) p8 l: x8 }
when <constant_list> then. F1 x) u4 T6 d' ^# ?! o
<statement sequence2>;
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else
' C6 b; `2 N7 y <statement sequence3>;
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2循环语句
' o, J% ^6 t" j* N# Y% h6 |' a (1) from <statement sequence1>. q! q J8 D# z- {
until <condition> loop
& u' M* v( t( c2 C" m <statement sequence2>;
0 ~- m: e3 T, ]+ f1 |! q end;
+ z; u* ?! X6 u% E) N! z (2) while <condition> loop6 W, H+ g2 n( b+ w1 h
<statement sequence1>;2 B4 X5 m1 D! T
end;, s& p. j8 \4 M1 _' ~# A# T; t3 d
(3) repeat
2 ^" l2 c* s7 m( f1 p <statement sequence1>;4 r. ~4 `1 L8 g, o
until <condition>;2 o; i4 }4 t3 e1 S6 I; Y2 y# T5 P7 |
(4) for <condition> to <condition> loop- _) o. U8 P! ]
<statement sequence1>;
# Y! `+ S) N+ H o# S5 a; ~6 D next;8 v3 Q6 C, n& W
3中断语句
) V4 j s2 S9 o/ p: M! y% r waituntil <condition> prio <integer expression>;
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以上为常用的函数！
* \$ f3 K5 `3 y) ^% {' t还有很多，如有需要我把资料发到你邮箱里 " Y/ e! `1 w. a& E4 H( i. E
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