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发表于 2012-11-13 08:48:12
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1判断语句6 A, H( Z* F8 p: s6 y& o
if <condition> then
( d& T3 U' D7 k% c <statement sequence1>;
3 ^" Y7 e2 O; N8 L6 n; r- w elseif <condition> then
% m+ x) `4 f* {5 a+ F; K+ Q* R <statement sequence2>;
& Z5 k* {& z9 n# F- @# p7 p; O else 4 g; O3 T1 L( ^0 x& R5 u0 a
<statement sequence3>;; f# _' P" n. C9 w N2 ]4 M
end;0 w. _2 `6 E: V8 l
如果分支比较多，用：
+ p5 u' E" F0 j B- k+ ^1 v inspect <expression>
" p3 f9 n1 H3 N0 b$ r8 j% N when <constant_list> then
8 ^8 }$ k: a: Z8 t <statement sequence1>;
1 _/ y+ Q) i4 {; `! { when <constant_list> then2 E. {; b: I& ^
<statement sequence2>;4 }( Y5 |6 u2 w0 D+ |
...
3 V: g( U, ~, C E7 c3 f! @ else
6 e" I% Y8 f* v N5 I <statement sequence3>;$ C! F/ t. [% z% `# y6 r0 W1 f4 F8 [
end;
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2循环语句* T4 t4 q P3 d2 {
(1) from <statement sequence1>
& S, J3 [* m& u+ \% n& G until <condition> loop0 S! l4 }6 q4 R0 H, v) n& c
<statement sequence2>;% [) A: o0 ?/ s' G! X
end;
7 k# }& Y2 {% M5 ^2 P9 m9 N, l" A (2) while <condition> loop7 k9 j$ q7 [. J& O3 h, v9 _7 o
<statement sequence1>;6 R/ j1 N* k0 E: |
end;
9 P4 C* g% X9 {8 c {8 M4 [' c (3) repeat ! n+ `! S, i* @+ w! J8 [9 Y
<statement sequence1>;
0 ^1 t3 _- b. }4 s+ M9 y( w; H until <condition>;2 Q4 O6 l" c# g F) t/ o
(4) for <condition> to <condition> loop9 w8 Q+ X5 t! _! g. X; a
<statement sequence1>;% n0 z! y* p) b4 T b2 }) \% ~
next;
- w9 O/ v+ V) f& k3中断语句
! z- ?2 J }! Z) k waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 a# n ~( ~, p k
还有很多，如有需要我把资料发到你邮箱里 2 f. ^" s" a* `8 y% X9 r+ C- Q# e9 z/ [
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