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发表于 2012-11-13 08:48:12
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1判断语句! V" \/ e: z* e ?% H M8 [
if <condition> then
3 y5 O9 `$ ]$ ^4 h. j: g8 Y <statement sequence1>;
8 G$ [& Q3 S6 t0 [/ A+ Y elseif <condition> then$ w4 n& ~( W" ?& h; i' c H' }
<statement sequence2>;4 b3 |, Z$ d7 s. q' |
else
! M( T3 l( C K% m' A& v' | <statement sequence3>;: Y/ ^0 D4 ?& {7 s
end;
9 m4 Y. u6 o) I如果分支比较多，用：
8 B, g L8 u% r inspect <expression>
[1 b3 e1 U$ X& V# H3 } when <constant_list> then) L V: n8 A4 z+ U9 @9 C
<statement sequence1>;% _7 h y/ T- e* p8 z2 V6 J
when <constant_list> then
9 l' D/ v% J7 O. D8 ^& Y) o <statement sequence2>;/ ~- d4 a N7 U5 b; r. `
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else, k# d0 B' z; D0 N2 ^& @ L2 F5 E
<statement sequence3>;
6 G" F8 t6 i: y0 e+ t2 i/ \end;9 Z: p j7 Y! `
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2循环语句
7 A. p6 @1 \( @ (1) from <statement sequence1>* Z1 |/ i4 W/ P/ ]$ d5 a* Q# }
until <condition> loop% ^8 I3 Z% ~( w! D
<statement sequence2>;; d; R' x2 G6 @6 |" {6 T0 B
end;
- }% e6 s2 c9 _, o; q# { (2) while <condition> loop
9 K" n3 ]6 W( h1 H4 C" |$ Q <statement sequence1>;
7 T; q0 f& K" d; l: L# g end;
. h' E6 P( e/ I: D/ m, Y (3) repeat $ x) A5 F, z& c; u* B. h: {5 I3 |& T
<statement sequence1>;
5 [* s# l# ]5 ?2 m9 s until <condition>;
: {/ x3 M" c& {/ @6 i (4) for <condition> to <condition> loop
+ g. J0 Z& `$ C8 e/ \# @ <statement sequence1>;8 G; Y$ D7 b* E
next;
7 f3 O+ U" O5 E( ]0 m3中断语句
/ w( e, s1 K+ l# T waituntil <condition> prio <integer expression>;
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以上为常用的函数！ R3 Q' P9 M2 S( M
还有很多，如有需要我把资料发到你邮箱里
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