|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句7 h6 l' v5 L3 B7 k7 L
if <condition> then) S% @' B: @; U7 W
<statement sequence1>;9 n6 M# }# o- O' W4 M5 u6 {& y% Z
elseif <condition> then
( P, {, a5 j. c" ]" Z/ L <statement sequence2>;0 L9 w; I4 `1 W; |3 p6 ]
else ) j4 l' @; \0 Z3 ~1 B$ F
<statement sequence3>;
4 y+ X8 @: M' M& x9 a0 e end;
1 |: }% }# |1 ?) J, U" U如果分支比较多，用：
. p( Q" }7 h, f1 }1 f9 Z( y0 k+ { inspect <expression>
. j0 W% G( A- P3 w- _/ n1 ?" b+ K when <constant_list> then1 K* q% k+ _: V5 [
<statement sequence1>;$ w5 e- ?$ @8 ?4 H0 R: t
when <constant_list> then8 c! a/ q8 I& K
<statement sequence2>;! c2 U v. s3 z0 V
...& f! g3 _+ @& @5 m7 [& B& C1 F
else
8 a: ~7 E) g0 C J <statement sequence3>;$ P8 V/ ^7 k3 c
end;% R x6 q3 ]& {# f t" V. |2 Z
# `; t/ q7 \# `2 U. X2循环语句$ A7 }4 {2 g6 K" b. a/ U
(1) from <statement sequence1>
( q( h( F0 D! o; J until <condition> loop
+ ]3 V# L: c+ H+ @ <statement sequence2>;
1 l6 {. |& h/ N& T end;( n, k; I7 O; Q4 a# [/ v- n
(2) while <condition> loop- V( c. z8 q& ^% K- u6 c
<statement sequence1>; a7 f7 r9 E3 n9 D+ u
end;
2 d% C' `/ Z2 I( S' P; G (3) repeat
' K' c, u) Y. M! V) v <statement sequence1>;
0 U& W6 W1 ^9 l$ q7 m- R: g until <condition>;( R" i7 i; X) j% e% D% F
(4) for <condition> to <condition> loop
! E$ w7 H) G) [4 ~5 G <statement sequence1>;
% p3 ^0 N- P3 E& W& D next;- u5 ~5 m. e2 M: ^
3中断语句
( N( Q5 N. Y H) w1 g( \ waituntil <condition> prio <integer expression>;4 i% d, S) ~ W* e: p
% L ~7 e+ ?" m# U/ b- z- }8 `+ D4 D1 a
以上为常用的函数！6 w& W% ]& n* d9 H# a
还有很多，如有需要我把资料发到你邮箱里
, h. x3 F9 ]' o, U( B: s
2 c, U- U) ~; j6 F$ a
?& n. m2 |) U3 R0 D# m# D* e/ v2 m9 P# m8 m
. A* D/ p Q+ t# i* U1 {5 A
) L3 w9 `0 ^( Q0 I, E8 T0 L0 p0 W2 }
7 n; F, J. A( m; d* c, Q6 a3 P; c& u( i( L; v
/ [. Y% a5 m8 ^6 {
5 p0 c& d" p9 Q0 y9 N
1 t4 [3 J z) N4 s |
|
[复制链接]
