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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
" ^; I( u) k& ~ if <condition> then
2 ?7 o9 ]. k% X7 P( [+ l <statement sequence1>;
5 U! u" }" j7 H elseif <condition> then
3 h* P1 @: `0 g+ Z. v <statement sequence2>;2 J4 N5 I" e& t$ E' o
else + N# n% f5 e, O. E6 Y8 J! a* t
<statement sequence3>;
1 z! d% ]. e" D- X end;: e2 U3 U) J5 @
如果分支比较多，用：
1 D% J0 _0 Y r- A) w) c$ O& f inspect <expression>8 Y: v3 {: k y& F
when <constant_list> then
4 r% I |6 O+ S! ?8 \$ U <statement sequence1>;( t5 s- |/ X2 ~1 H3 z# O
when <constant_list> then* Q4 f5 _! t9 R% k1 f- m
<statement sequence2>;/ w5 p! w: Q7 [0 A
...8 o& F! | _3 L
else
! U, V; U% A# o <statement sequence3>;- b7 E- l0 T$ k: N) q8 Q$ I
end;& @2 }/ V4 V" U5 _/ L& a
! d- i4 w8 a- T+ z/ {2循环语句& M. ]( O/ L8 \* s, Z% v3 E( u( `
(1) from <statement sequence1>7 J' B q. o: ]* R' J
until <condition> loop
: k3 t5 E) K8 k3 K, t& ? <statement sequence2>;
! `6 H5 V$ w& g$ w' A9 ^ end;. b6 s+ ?2 q9 \6 C, E
(2) while <condition> loop/ k7 N2 C C8 Z$ G% p. n/ a
<statement sequence1>;4 x1 J2 s0 c3 A" f3 v) j
end;9 |9 y0 l7 I7 m+ d: J+ M
(3) repeat
# ~6 q+ n B, J5 \ <statement sequence1>;& Y! Y( ]9 w( j5 s
until <condition>;
/ V# S# Z0 t# z (4) for <condition> to <condition> loop* b ]8 i! H) y1 Z% H D
<statement sequence1>;7 I. I C) \# H* \( L
next;8 `( Z" g+ ~( m' G9 f8 m; _4 D) l, v
3中断语句
1 K4 W; B) c3 F* K waituntil <condition> prio <integer expression>;
/ d! R/ B% r- l1 h, z* p* h" ^: e, B! P0 C. |! y
( {2 G% O ~9 n# p0 {2 v以上为常用的函数！$ C+ @2 M- _& N. u. w E' l% j V* u
还有很多，如有需要我把资料发到你邮箱里 $ t. I4 y3 i$ I
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