|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句8 R6 V N- D6 {. g+ W* t
if <condition> then
1 ?& q: s( y1 V8 s1 Q <statement sequence1>;
, G6 X: p+ u$ {2 c; \9 f+ [1 K N elseif <condition> then0 w# a% Z: t' V6 k4 h% L- R9 e: ]7 c
<statement sequence2>;
- f5 y1 M [, g& Z0 { r else 1 Z" j' J% ^" q% w
<statement sequence3>; U" k, l; y+ @$ n3 g7 O/ \
end;
o/ z& y+ o1 l. _7 ?2 ?5 k6 a如果分支比较多，用：
]9 K$ v+ H5 |* d0 E inspect <expression>
/ j* c$ V# @6 |1 a5 i when <constant_list> then' J4 u, L$ a$ f, l
<statement sequence1>;
7 \+ G, ? ~. S* j5 u+ c6 ? when <constant_list> then" b _% t$ P1 S$ _4 H0 o. [# H
<statement sequence2>;
* K3 V# K5 c. D9 ]1 z" t5 V ...
8 Z9 T Y6 Y( d; t) Y3 H/ o else( u: S4 Q) {, S: X* l1 n/ r( D
<statement sequence3>;: Y2 S! c* v- Z/ ?" w
end;
" s3 I" W! [/ @! M3 h
4 K" b0 d- A7 I7 Z0 [2循环语句* ~* ~ g/ @# r4 D3 x' Q
(1) from <statement sequence1>
& E* V5 s' f4 M% }: a& p1 \; A until <condition> loop2 [8 r. d2 Y0 c1 m
<statement sequence2>;% g' E* Z; ^1 E. I1 \; w; y
end;
/ V4 v1 X5 j8 O& H: L/ Y (2) while <condition> loop" Y0 ^/ Z; [" @5 _
<statement sequence1>;
\! p, p# w* n6 x; L, K! a end; m4 [: k( W4 k" C, x( j
(3) repeat , f& ]* }& F% o# l' M
<statement sequence1>;: }2 m9 G7 Q) E: E
until <condition>;
8 D) t9 ]5 }3 n# b (4) for <condition> to <condition> loop
1 i- \, w; W/ V+ A$ m3 c$ R <statement sequence1>;2 |% ^# T% }& f, i% J* K0 i" q
next;! X% j* _& Q/ S; D
3中断语句3 D0 [2 r2 y* J
waituntil <condition> prio <integer expression>;
* R. S' J/ T6 ?; ~/ c K, Y
3 C- b8 @! B/ y+ M# U& s8 X- w2 P/ F6 P
以上为常用的函数！
& x4 l6 `3 H5 f! v2 w还有很多，如有需要我把资料发到你邮箱里 $ i; k9 `0 S+ g8 o5 \, k! \
% ^ B) u# v9 }' D' R& v
5 l, \& H, b7 Y8 E5 U) G/ |! k+ c' ]5 F! G
# D& S7 A% `" r: X8 G3 m# y1 c$ d, Q6 d6 P$ D
3 ]; z4 f' Y6 @. D2 d5 @
+ V. g- j3 H% \; C- {' I$ `" X
8 r5 Y5 }/ J0 p+ G ?
- Q8 o" l+ x7 `& D E! G" H6 p1 ~' U
|
|
[复制链接]
