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发表于 2012-11-13 08:48:12
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1判断语句' s! |5 K' w: t& j- Z) n- w
if <condition> then
/ T' H) }- Q; Q$ C <statement sequence1>;
8 }8 |9 b+ A/ ^ x, d elseif <condition> then
" X2 V+ Q. f. x) O ~! x& k <statement sequence2>;. ?! ]/ s2 n4 C8 k
else ( X& l* r3 O7 r9 J
<statement sequence3>;/ R1 X8 p* K; A3 `. r# ~( h! l
end;
- d2 m+ e* \* P- W* Q( v; O如果分支比较多，用：- M( c; \& Q+ Z* K: ~0 a
inspect <expression>* s1 j x9 |0 M$ V8 ]$ C
when <constant_list> then
" b# r( R2 c6 ?$ C/ n7 z4 [/ V <statement sequence1>;
1 B- Z6 T2 f* V when <constant_list> then
- p, u3 [9 v) z& u6 X& Z9 K6 N1 n <statement sequence2>;$ s. G8 e% W$ X3 F1 N) H a# s( }
...
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<statement sequence3>;& i5 u6 n. q3 d% l
end;
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' w6 g& h. r/ t- c0 D2循环语句* N/ o- K8 `5 R+ e( r: L" r
(1) from <statement sequence1>% [& H' l5 k, e, Q, U
until <condition> loop8 d% w- |, w/ u6 ^# k i2 C/ f. k
<statement sequence2>;+ \. D* j% G' w; A4 N
end;& `/ q* L* e, Q4 n! D( t
(2) while <condition> loop
( U4 z/ B) I2 E6 n9 a0 E: j <statement sequence1>;3 @( E- _# P0 A7 E1 v/ E
end;4 h. ^4 o- w6 ~: p% U2 x* M
(3) repeat
0 ~2 o j$ {2 ?6 _3 b! V <statement sequence1>;
# W$ X# }0 O1 B until <condition>;
4 N& }6 w5 R8 e+ t* O" f2 N) e& H0 p (4) for <condition> to <condition> loop
( `, ?! s! u+ m- z* b! W3 d <statement sequence1>;
7 d( s) }& ~; y$ L next;
( }9 t2 Y3 ^8 ~0 h3中断语句
" \) R7 P! L& C waituntil <condition> prio <integer expression>;
0 [3 _; e4 Q* M$ Z& p+ N
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以上为常用的函数！
- O7 G+ |+ h8 X! G G还有很多，如有需要我把资料发到你邮箱里
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