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发表于 2012-11-13 08:48:12
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1判断语句
- [6 Y F- g; e& \8 ` s0 R if <condition> then
K! z% v8 T7 a+ Q8 } <statement sequence1>;
; x _ z, I, F+ C2 s e1 d3 o; I/ P elseif <condition> then! x4 I- f4 m8 v+ I$ u
<statement sequence2>;. X+ _. v) J8 O$ R, I( t2 S! c
else ; p9 P8 `8 P- R
<statement sequence3>;
+ X9 v' I1 B5 ^, O: J% k1 K end;# T0 C1 s! S6 v! j2 b+ K5 u" K5 u7 \
如果分支比较多，用：
- d" F6 Y; M. P( B J( Y inspect <expression>8 @2 L: R6 S9 }" a$ u. _' o6 s: z
when <constant_list> then; M! Y) j4 O- o, R7 i. U" z
<statement sequence1>;4 b2 i7 t9 H7 \5 u, z* x* Q& X
when <constant_list> then
0 I6 j* @4 a7 n4 G. w9 L- S <statement sequence2>;; W3 ?! c x% W4 ^6 a2 U: u+ Y
...5 T; ?* G4 o8 x# E5 R8 P
else
' i4 R* B' w7 N1 Z# u) e <statement sequence3>;
: O* e; v: g0 ~5 N, {' Q2 i2 jend; g' d* R! S/ |6 y# k
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2循环语句3 u" T9 D0 {0 N
(1) from <statement sequence1>
: H8 Y3 l1 y5 |+ h2 D$ w5 h% n until <condition> loop1 H6 Y$ H, W/ P9 K3 B
<statement sequence2>;
4 _( l4 M0 a* U* h end;
* M7 D- s+ }2 F& _% z, ]& d& c, j3 X$ | (2) while <condition> loop, G4 W0 u) q7 o+ Q# u6 z; M
<statement sequence1>;, L- r. E. f9 \% _5 C0 \; f
end;# W8 j1 u4 r+ f, z" U2 ~0 G
(3) repeat
! q* r3 i: V$ j7 V* G <statement sequence1>;1 e) E; {" @$ F" e4 y5 a
until <condition>;
: X& d* V% W* C8 v (4) for <condition> to <condition> loop, \1 l1 p" H5 O1 x$ ?# }' Q. M
<statement sequence1>;: }% v3 J! F7 L4 J
next;
! N' Y! I4 q4 R* \8 x$ [3中断语句8 g. \/ w0 [! `, k2 Z3 \ w' Q
waituntil <condition> prio <integer expression>;
7 K2 j$ {. w2 P# _ k6 K" t+ {8 j0 d/ c& E1 C! h7 V) \
! \! M) X9 m( m
以上为常用的函数！0 d0 Q5 \& C% K9 H9 m- e
还有很多，如有需要我把资料发到你邮箱里 $ W3 F" n8 R9 C# k% G
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