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发表于 2012-11-13 08:48:12
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1判断语句
8 m3 h- S; U: s$ d; v0 L if <condition> then
* T! Q$ F2 [/ g8 f1 g <statement sequence1>; {: ]& `" \1 t4 H; |" E( y1 O
elseif <condition> then a7 K* h; G1 V4 M5 ]- \" h
<statement sequence2>;
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<statement sequence3>;
( z2 m( D4 ?. J5 u/ C( n end;
' _& z Q& ], K: q2 x+ b# t如果分支比较多，用：9 ]6 w7 g7 z3 [
inspect <expression>
0 N% D( O& D" Z/ d# H T4 V1 ] when <constant_list> then7 e2 d% k3 X8 }8 O$ E% `: p
<statement sequence1>;
' Y5 h9 l% i7 @! a7 ]! y when <constant_list> then* I/ [) U0 j, o6 [+ Q
<statement sequence2>;! ] \; i' B" h5 n2 b( o
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else2 H8 D0 V" u: i' Z/ [/ \
<statement sequence3>;
" p$ t# A4 j! S- P9 v4 I: yend;
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2循环语句5 z9 B( I4 p" Y, g
(1) from <statement sequence1>( ~5 O. M/ j5 r, |& ]
until <condition> loop
' `% P" d0 a: a9 b' l2 g <statement sequence2>;3 k2 v! n, p& a$ U4 X* Z3 u
end;
( f/ P5 }( l% v4 a2 k (2) while <condition> loop, o0 {# Q5 p& @. g v5 X
<statement sequence1>;- Y) o! ?3 W/ U) _/ S3 {0 h: K* M
end;
! ]0 E7 \9 N. J3 o8 S% v8 o: X" D1 H (3) repeat
7 ], |) Y# E. J, p9 r3 a" E; Y. M4 A <statement sequence1>;
9 S r) p% G. Q; C% t, p9 h until <condition>;2 b. H8 X. e- K+ _
(4) for <condition> to <condition> loop8 {2 D% T$ I- L2 o
<statement sequence1>;
$ z$ n$ @; m' J6 q) X2 n next;
) l% A6 r5 C# u* B) ^' U3中断语句
3 H) B$ p" Q! o9 W/ Y waituntil <condition> prio <integer expression>;
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) h4 y. I% I+ f' ?4 s1 X以上为常用的函数！
8 h5 K* A! _3 N J9 d还有很多，如有需要我把资料发到你邮箱里
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