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发表于 2012-11-13 08:48:12
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1判断语句) i( h, @( J3 e3 a; w
if <condition> then! i+ M% M" ~3 P( H0 i A$ Y" C
<statement sequence1>;
% s7 J# e. p7 R. k8 P7 K2 d elseif <condition> then- l/ v" [( T; P7 Z8 g) O8 W
<statement sequence2>;
3 t: Y9 D* Q0 `8 v else
) o. I; r9 J- ]5 x2 V5 f( C5 T3 c <statement sequence3>;& G. t* x/ T7 R% Y3 s a+ k9 I
end;. w( _. {8 Q8 g1 p" }
如果分支比较多，用：
6 C, Q7 E0 V% o; ~1 T inspect <expression>3 _# z6 k" K- d, Q
when <constant_list> then
7 Q3 E f$ r$ S: S# M$ e9 { <statement sequence1>;) G% N0 d3 K( D0 @! I, r: N: H2 \5 q
when <constant_list> then& W7 g, I5 {, p" p' k
<statement sequence2>;
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else
0 H1 H6 b2 b2 O- ? <statement sequence3>;4 Y& L; a' I2 }. Y: E
end;
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6 i3 k5 ` `2 x3 g, K; k+ W, D/ E/ i9 q2循环语句
6 l1 @; \ l8 m$ Y (1) from <statement sequence1>, V y% q' b( l N
until <condition> loop
: r' l5 [4 D! o5 d# |0 _* x <statement sequence2>;
1 k* e( Z o7 L) }+ D end;
+ E- [( g' b3 f7 \ (2) while <condition> loop
; o8 @' t4 w) ~ <statement sequence1>;
: m' i; P# q+ \& Q7 p# u end;
% l% E) }" [9 p8 R8 o (3) repeat
/ M' g* ~ t" ?0 N( b; x2 ]% G6 ] <statement sequence1>;
; m" s! |& K$ r9 V until <condition>;
# E# S. M6 Q+ f( P4 @$ P (4) for <condition> to <condition> loop
/ E' M! V1 _5 C$ I1 {4 } <statement sequence1>;
3 q) J1 u5 [5 h) e8 L7 T; l next;
& g7 z1 w1 w( Z" W- n/ x3中断语句
$ S \% b% @- o waituntil <condition> prio <integer expression>;+ S( o1 _% ?: v4 u# G# ]% ?
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# `/ y- r) N4 Q; g9 g0 U8 Y) s" V
以上为常用的函数！
/ H- R! j9 e' t' r) N0 [* x @6 w还有很多，如有需要我把资料发到你邮箱里 3 H- r! k; u! |
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