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发表于 2012-11-13 08:48:12
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1判断语句
4 ]( j% ^- u& s1 I- r if <condition> then, i( A2 X1 J! Z/ l- o8 @$ k
<statement sequence1>;
6 [( R* \4 r7 w elseif <condition> then
) l4 I0 e: n' K0 k7 @" N! E <statement sequence2>;
# u' W- m7 o+ S7 g* X3 X else 9 r- \9 r# z8 m1 X9 C. K* p
<statement sequence3>;
_( C' o" f' ^; b end;- Z8 n; w3 T/ M3 v4 U: t3 Z
如果分支比较多，用：
! A% I6 ?1 N' |( q2 U3 l) H" H( c4 X inspect <expression>: R5 a& L1 i$ u& N; j9 X$ g% Y
when <constant_list> then! `* n! z. t5 X0 m
<statement sequence1>;
7 w* v' ^( H* H& Y7 p when <constant_list> then$ d- {* N6 d( U9 O! U
<statement sequence2>;6 }. j* N: }5 o9 l6 ~
...( s9 D) b: q: W W! a. E; b& _/ a
else+ c1 @" V9 Q# g- i3 A1 t0 d
<statement sequence3>;
5 x( g4 i% g6 e9 }end;
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7 e2 |( l0 T2 T" `7 r2循环语句. w: m1 u5 E. |3 [9 Z% v$ h( A
(1) from <statement sequence1>% [5 s; e8 K4 D1 q$ Z
until <condition> loop- K' D) g0 b/ Z: B1 q, d& L
<statement sequence2>;2 M! E( o/ q* \3 V
end;' R; ~/ p% a) n; m' s
(2) while <condition> loop
7 n' r% \3 ?' s3 n0 D <statement sequence1>;# e$ s( Z: B. I- b7 I5 l7 i
end;7 ~* \# ?5 r, q" d' m
(3) repeat
. N/ E3 I6 W4 I( X& N( }' U, \6 Y; m <statement sequence1>;
) S$ O9 _: p8 k) A2 z0 k until <condition>;
: A! J6 L9 N$ h8 c+ r( j (4) for <condition> to <condition> loop
@$ j8 ~+ G# g9 W <statement sequence1>;
y" H8 z" T. M6 K next;! o2 n- R7 I4 k4 ~, w- I, v. m) U
3中断语句
6 h; ]/ c9 K* s! }+ O waituntil <condition> prio <integer expression>;6 M2 D+ I) E3 g9 s
6 Y3 c4 ]: a( [
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以上为常用的函数！
3 N5 j& T. E# Y. p0 P- j1 c! O, W还有很多，如有需要我把资料发到你邮箱里
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