|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
9 n H# l( C$ `) U, a1 l if <condition> then
; M ^9 f J: A; D' z Z <statement sequence1>;
0 b& P3 b1 b4 n8 ?% V elseif <condition> then
6 A9 R0 z/ L# G <statement sequence2>;
' N1 }( x0 A( y7 f8 V else
3 i4 [+ \- d* @7 |3 p% } <statement sequence3>;
* L- p3 q* B4 z; ]$ E5 b end;+ Q4 B# q. z+ T& A
如果分支比较多,用:
9 U* t# F+ U' `2 _ | inspect <expression>
6 t8 u) ^4 V$ @9 a* K4 e8 U ] when <constant_list> then
6 C% |1 [) T2 y8 C* l <statement sequence1>;! x1 N1 Y& z3 q! t, S6 c
when <constant_list> then
! M* W+ Y* l: y' t% S <statement sequence2>;
( N% }1 m. U3 `3 X4 ? ...% @) {# R2 E- g- u1 Z
else+ P" e0 |4 \' s" E
<statement sequence3>;
7 e5 ^, ?1 }) {" N" }$ tend;7 h6 @, Q! {; i5 [
, x' Q8 {: e/ P9 O# v/ t
2循环语句
# H: G l- `& h (1) from <statement sequence1>+ U; ]8 O+ t4 D U' I
until <condition> loop. Z0 d L$ D2 `' Z% b6 c" ^
<statement sequence2>;6 q) r' D4 M+ ]
end;0 c7 S: F/ P: T' x) H" C
(2) while <condition> loop. I# X3 x+ R$ _; C, _; ~
<statement sequence1>;
8 r: X+ u6 f) C9 {$ r end;$ j. q9 B) x, @
(3) repeat
) v+ \' r9 R( O6 A( a" H <statement sequence1>;& [, D% [: b7 T. H9 [5 I4 j0 P
until <condition>;% V# I* S0 w6 Z( l4 q6 u
(4) for <condition> to <condition> loop* S$ x8 p: @% K7 ]2 b- V. \5 |
<statement sequence1>;2 h! H8 f1 M8 N+ V4 h* ]
next;
& C" O% [; P: E" x, _/ P9 }3中断语句, R8 P* P \9 E- `: M& d2 @1 S+ W
waituntil <condition> prio <integer expression>;
% U" t& @( ~# G3 C( w$ c u1 N* x" B( f {' k9 j: m
3 K7 b: l, e2 A9 x1 f4 i以上为常用的函数!- K3 I5 R8 R3 s* I3 v9 D
还有很多,如有需要我把资料发到你邮箱里 : X* [, ~$ K0 }
. b; U6 e) h7 ~" e( o0 M5 |; V8 {, Y; H& v+ r" c. P0 w; x- h* `, T* C4 W+ V
+ O$ m, ]4 g7 l8 ^
1 X# U# n7 _. {* J: q# A# Y0 I3 Q0 N; \0 U1 L4 D D' W
6 K# q9 u- B8 b* y. B
; i( u. l6 ^, j" H) G0 [4 `: A
4 o5 C$ m/ V7 J: Y3 W; z
! V8 Z/ g8 |! F" ~ + c t9 G; t% x' C. ]: {
|
|