|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
' I7 q9 M3 P, O' P$ {8 H+ h if <condition> then
3 y' V# x( ]$ s/ m! W5 F <statement sequence1>;
) L- n7 N, F$ {) T8 T elseif <condition> then1 L' s8 l8 P7 e' \
<statement sequence2>;, n/ c6 I" M; o. U+ i& t
else 7 H# i* \$ V; a# P
<statement sequence3>;7 L N$ s. q# ^( e
end;2 b) }0 t7 \! B5 j7 m( ~) n
如果分支比较多，用：, T; M" j# `; v0 y8 s- B# A
inspect <expression> }: n. C( X2 ]/ g& R8 G, g) T
when <constant_list> then
0 |7 l# X4 R% v& l3 n <statement sequence1>;
! r! K! O- F2 m! a when <constant_list> then
Q7 h! s4 {2 @+ n( ~: g <statement sequence2>;
% ~' f5 d, p4 W x' H; s& Y; X ...
, a# E+ U; I, r$ F: d else% H% I3 H( o7 o$ \0 t1 C9 `2 q
<statement sequence3>;3 U1 G8 ~+ a% S8 ^5 D
end;
- f; {" T5 V( W! B/ v3 w% v4 H0 o) @) n" Z2 K
2循环语句
) E7 B. M- j. @5 b: x (1) from <statement sequence1>
( J9 S+ u. B3 f' X# S until <condition> loop; ^% M2 }# i7 h( x8 K' {9 U8 q
<statement sequence2>;: ~! v5 H& S0 r# A% b9 q- j. t; ^5 P
end;
+ N z" \4 `% `' D (2) while <condition> loop0 G2 J5 I( T' A9 ~" I1 I/ S8 X2 j
<statement sequence1>;
6 c/ ~4 ^2 u6 B) R& N6 ? end;0 D! L5 C" d: p1 m6 o% q
(3) repeat : L' `$ m$ |( M1 a
<statement sequence1>; m6 z7 `5 x/ X8 ]3 B, m$ R- V v
until <condition>;
5 D9 m/ c1 q- ?' { h$ Z0 O/ ^ (4) for <condition> to <condition> loop
0 K4 V) h3 J( i <statement sequence1>;
- l8 ^, E5 w4 k4 i next;- O' W$ ^, B0 m/ K, o$ F
3中断语句9 _' ?& x3 D: r' @+ _( F
waituntil <condition> prio <integer expression>;6 {0 r' Z- @# b% Y* R$ S7 _/ [
1 C6 j2 S. C5 F+ s$ f8 Z/ F; d
4 k' o: {. k9 o: W3 O& G/ G- f
以上为常用的函数！
. X3 ?3 D9 E* ?( B还有很多，如有需要我把资料发到你邮箱里
7 ^, K& _" P& \# q1 R1 ~- {, t X4 N: |& R
: N k5 W3 d* t, z# f( b+ O3 p
% q/ n" B" g" J4 v8 S
' ~: ^0 B9 Z6 }8 j1 S
! X/ D. M5 ]6 X1 u: k7 L1 K' v$ V G/ C
# I) f' K" e( ?& m U/ O4 j# U! j
, f$ c0 p5 s+ k' J, C8 ]
5 n8 ?8 @0 _ ^) O5 s: x) D* r+ z 9 l& ~) _; Y3 V% y; c6 |) l. M& z
|
|
[复制链接]
