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发表于 2012-11-13 08:48:12
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1判断语句
3 v# s6 u# A* ?+ Y3 {1 p& g' ` if <condition> then
' L5 C8 |% S- f v8 X. x <statement sequence1>;
% o& z' w q g2 V- j7 J( H elseif <condition> then
) T6 }* g0 q. P( y6 J! F <statement sequence2>;
5 V( X8 k$ q; g) i7 \1 _+ }4 i else
- X. w0 P- V+ |% O+ W7 [ <statement sequence3>;( ^3 o! q( _, R
end;2 ? P. B3 r. E) u3 |4 S
如果分支比较多，用：
5 o" _9 Z4 [' y) }7 v6 L9 l inspect <expression>
6 b2 u( u- B0 @* y, b6 w/ _ when <constant_list> then
W. u) |: n5 H: d6 y* { <statement sequence1>;
3 B+ d% j# \) }9 i+ o3 }0 ^ when <constant_list> then
% N9 g9 D' z! G D <statement sequence2>;
# d; R1 W) V$ C1 l4 @ ...% j: V3 k! h3 V0 T! |+ ~3 X
else
& {* _, a( B" m. j <statement sequence3>; N( Q# E ~6 A
end; _4 d7 ?9 j5 y
4 m* U9 ^% M' Z$ E& i% Z5 }2循环语句& ?1 _4 t1 V& |0 V
(1) from <statement sequence1>
) G+ v" v0 D# ~# J( F2 q5 p9 b until <condition> loop
* N- ~$ ~5 d! ?( U, D9 r% b- d <statement sequence2>;" [; q3 k0 ~2 M# ^) j" x y4 y n
end;. l; F: }. u( H# g" G9 k
(2) while <condition> loop
( x( h$ ?5 e( K7 e; Q$ w <statement sequence1>;
1 \: \2 U0 d- k4 |' q% X- b end;8 b4 i# W$ {$ z5 ~4 k3 H
(3) repeat
- }& A7 V/ I3 X' ^% Q <statement sequence1>;: `7 [3 z: E$ s+ r0 D
until <condition>;5 s& I9 K1 z- V# O/ G) G$ I
(4) for <condition> to <condition> loop8 I; `! @8 e* h' G- ?; C
<statement sequence1>;
4 q0 y5 W d' i! I$ O* k next;
4 h7 y9 C4 U0 @2 p" Y, N: y3中断语句, ^( V) N/ k5 w7 Y- t5 `
waituntil <condition> prio <integer expression>;
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以上为常用的函数！) j& T {, h; ^
还有很多，如有需要我把资料发到你邮箱里 4 X1 R4 Q n' L: h
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