|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
! w! h. f7 v1 Z, s" ] if <condition> then
+ \% B" Q2 S5 j+ r/ @1 x/ z- |3 M <statement sequence1>;
& P! P/ D( ], Z7 q b% H elseif <condition> then+ k3 C8 z$ e, A, t: ~+ g) m
<statement sequence2>;
% G/ }, R8 r; R else $ f9 _& d v5 e5 b5 k
<statement sequence3>;7 V( \! |& L: @0 k! n
end;' v% w3 {" e9 D* W
如果分支比较多，用：
! Q8 F1 L- O% ]7 b- h$ ] inspect <expression>
8 Z/ |2 B u7 |% y8 {( n( H& i' I when <constant_list> then
& P. g5 h+ A2 `+ W <statement sequence1>;
0 d) g3 l& f3 @) a4 E9 T when <constant_list> then" S1 V+ i3 _3 m. \
<statement sequence2>;* C+ y" n! U( W! f R& `" r# L
...
1 |! |. @- ~2 Y3 N: w else5 q1 r/ V6 E( ^$ S( f
<statement sequence3>;+ m. }, L" X% ]9 c: `5 }
end;0 H3 e7 p. S! n5 R7 g
4 W" z3 R7 T/ J. Q0 W% G" u
2循环语句
- E6 V' P+ m) T8 X& j (1) from <statement sequence1>
]) b( a' J: _0 Y' r h1 m7 ~6 S until <condition> loop
7 j) |; w0 w9 n, Q <statement sequence2>;9 e j5 O; b- ]8 d/ x% c1 k, K
end;
' w1 Y$ G; ?$ e n' @ l (2) while <condition> loop- q( q. F9 T4 U" c% r4 Z+ k- V
<statement sequence1>;
( y2 z: T6 I+ O) a end;
. n/ c) j% m. D, v* r (3) repeat
' Z5 x1 g8 a8 O% i- v1 _3 k& |* k <statement sequence1>;- g5 Y( a. \2 b5 o% h
until <condition>;% `; |* P$ |: d. \5 t2 {+ n5 r
(4) for <condition> to <condition> loop
2 C: u1 d; t# `8 R, `8 i) S <statement sequence1>;- a7 t+ y- F$ x. E
next;3 m! }- Z/ ]8 n! l
3中断语句( J* U* S6 X2 h4 Y2 F* u7 S3 b, u
waituntil <condition> prio <integer expression>;
5 M& Y, o) h/ V. e3 a$ N. x( }+ O- Q
! l3 U; G2 N& y( T( X+ \
) p/ `% E) a# O& v以上为常用的函数！
' T# S7 |* ^ A6 P% I0 x( i) Q还有很多，如有需要我把资料发到你邮箱里
0 `) ?" q( l8 F8 y
% o/ ]# `. S( k$ v; ]5 B; K. p# F6 o! ^% p
/ ]8 J& s9 n: x F: C4 d) B, P0 M
' ^ J; S$ s% p0 V: u- C
3 _/ A+ [% y F! V S+ G- i- G1 |
0 ^# e9 n2 q2 ~: r$ K
O9 r' _' n+ q
$ c9 n$ D. Z0 ~+ V% K. h5 p
5 ]# O2 Q, A3 C Y/ V# X4 z+ N
j, n( x! Q/ D |
|
[复制链接]
