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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
* D& f" p! I- y1 x4 A if <condition> then
, z* ~; M1 f: e) W. x/ F <statement sequence1>;
# K) R" G) x$ z elseif <condition> then
0 o/ Q+ m1 b6 k7 y1 _# p <statement sequence2>;: r3 A! c, N, r" z0 o! o
else
- p# I% D* [6 N1 |6 X P. ~. Y! v <statement sequence3>;
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如果分支比较多，用：
5 }, g0 C7 {5 Y; ?+ N0 B inspect <expression>
! h! B& I( Q: o6 a) Z when <constant_list> then$ \0 ?' ]: y$ \( @. u1 ?
<statement sequence1>;; ~2 [. X; y) b3 X* r
when <constant_list> then: L4 E9 \6 l! ]+ M5 {: g0 a5 I
<statement sequence2>;
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else
9 T. c8 v4 W5 O6 Z; H <statement sequence3>;
: S- @& _: ~4 v% q* a# Q' send;
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2循环语句
0 f1 O0 L; u5 s+ ]8 ?0 c/ q) K (1) from <statement sequence1>' o6 y! L, E ^% F
until <condition> loop0 q4 O# s( e7 p L/ p: B
<statement sequence2>;0 N R% F+ T& b7 j+ o
end;/ u0 Y2 m1 D7 F% J Q; m
(2) while <condition> loop1 \+ m) f2 A7 k- ^/ Z9 b: J
<statement sequence1>;9 i f0 m. y$ h6 \. I& n) W
end;
& d; l, C4 w) m (3) repeat
: E, n5 j9 w$ Q <statement sequence1>;
5 ]6 e3 q! t# a6 R) z until <condition>;/ T+ P+ D% j0 I# J
(4) for <condition> to <condition> loop: B: I+ ~1 K3 W( ?1 ^
<statement sequence1>;- Z" N7 ^6 ]0 T9 b z' U
next;! q6 ]( D" z6 o/ C4 p9 T$ i
3中断语句
0 s. f, p' K6 z C: p* E waituntil <condition> prio <integer expression>;. N, V' Z$ q, Q
6 {, U+ E/ }/ H' R0 y
6 O, A$ a9 ^$ c& n6 X- Q: F5 i以上为常用的函数！
9 I7 g! D2 |* O8 W还有很多，如有需要我把资料发到你邮箱里
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