|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
" c6 C$ B# ^3 _$ l% \0 Z if <condition> then
- T: Q0 e. p+ \* l% l <statement sequence1>;$ o+ A1 c$ ^9 K) g. G* [
elseif <condition> then
/ ]" j4 J3 @# D# k <statement sequence2>;! w7 q) F) x" C: ]
else
+ D3 I8 O: s5 U; l <statement sequence3>;
' j- Y! a5 Y9 j5 U$ g, Z end;
3 A" ?8 C Z9 j8 _- `4 |7 N* Y3 p如果分支比较多，用：
: i6 L- F) }2 U( l. e/ M inspect <expression>
1 ?3 W3 ~' v7 c' [" z: H, w% P when <constant_list> then
9 ]& Q7 z& O0 b0 K* H! G2 E" q$ W; i3 ? <statement sequence1>;
* h' D1 d; J) }* f when <constant_list> then
8 _5 h) v5 D, ] <statement sequence2>;: l$ ?1 S5 \, N F* r/ f
...! h$ q/ L+ E7 `0 z6 }
else
6 t- `! D; Q% N& v0 F0 V! a+ H) W5 L } <statement sequence3>;% ?: N3 v% \9 z B- F! c
end;
5 f2 A2 _9 w4 Z8 v. W4 v8 F6 w9 X- x5 L* G2 j% P* W
2循环语句! ~' c+ ?" l. T4 [8 l
(1) from <statement sequence1>) b) g7 q+ c- t
until <condition> loop/ w6 j1 C0 s2 u
<statement sequence2>;
# x1 ]5 i9 m' m& M* ]0 o# x1 S end;
: t5 l3 e& ]3 E (2) while <condition> loop
5 x/ u! Y1 j" H. B5 _. S <statement sequence1>;! V6 E6 Z! X2 s) C
end;
% @" S0 F% V7 H5 v0 Y( r7 j2 H (3) repeat
5 C& y2 [" ^! n; d' q <statement sequence1>;. l" U5 T4 f# n( b$ |- |
until <condition>;' X3 f% I; \& n6 B
(4) for <condition> to <condition> loop
/ U- A5 f# L% r/ h4 r <statement sequence1>;6 j; T5 ^7 d- D! T! e% e& x
next;) d( t f, I, X: k6 A- D
3中断语句3 w' d; ?1 X5 k9 r3 t6 |3 j d
waituntil <condition> prio <integer expression>;! R: c9 I8 a' N$ S# m
8 S6 w% w& ?: l7 {4 i* {" v0 s% }
: U% K o$ C/ p+ j; N+ [% a( _7 o/ x以上为常用的函数！" u1 i9 \0 J% R \% ~! h
还有很多，如有需要我把资料发到你邮箱里 : f& `4 M1 H; O" u9 ?1 n8 C T
& [$ ?8 n' \9 `$ }
! x# Q. a3 E! E" \% `
~, T7 B( }- g# k9 q# h) H 0 M( E4 T/ i, r! [7 d
- r) a+ W# D [0 |
% _$ r. J$ ~" v; N7 d. N( p: o5 b1 M( Y
4 _+ X0 Y; m1 r4 o. u2 {; H2 [0 C+ S8 _# n
, |& @; ^$ o( D( |9 d) @+ q
|
|
[复制链接]
