|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句. n5 t2 K, u! G2 u, P- S" i/ W
if <condition> then
( V4 m* d* p& Y T" u/ h f <statement sequence1>;% w: o9 X! @1 V R4 |5 N+ ?! d
elseif <condition> then8 X( T) t( K0 R+ G6 K
<statement sequence2>;
0 k1 g, `$ X, ^8 B2 V3 Q" ? else 7 G. t x2 e' ?* W0 v E: K
<statement sequence3>;( t A6 ^6 Z/ J& n3 `, h, ~7 _
end;( m" h9 v5 a, P& z) w" f1 [5 m$ f
如果分支比较多，用：8 u5 n# B7 c6 H& W: D
inspect <expression>
$ p- _4 p5 v0 W' r when <constant_list> then
- X( e' n! R1 |8 n5 V <statement sequence1>;
4 Z) N; h# a4 x/ J when <constant_list> then
2 f: ?" Y& _5 h2 ]! T <statement sequence2>;
6 I4 Y" E1 ~' f% R: {4 E$ p ...+ m& y! d! e( N) z1 A' h4 C
else
4 q7 m! p0 c8 A0 q <statement sequence3>;$ s2 R' a! P# P! z6 k
end;
3 c/ D* U S# ]& [7 f. K1 V g, T- T; d( N% v* @
2循环语句
* m9 k& f+ Y6 s7 H* E, \ (1) from <statement sequence1>
" z) b' R7 Q v) x- Q until <condition> loop3 B) N2 c& W% v3 ]
<statement sequence2>;
) {" c4 J0 {9 B% m9 A9 }# ]/ T end;
6 x f) l: j" r* j (2) while <condition> loop3 Y E$ ~4 Y* `5 }
<statement sequence1>;- U: J' Q# E2 z$ a; z2 Q' S) t
end;2 R8 {3 I1 Z- F& S5 ?. j
(3) repeat 8 I! e* y. f8 ~$ ?0 _6 Z- {. k
<statement sequence1>;- {' k% r7 I# Q9 V7 j
until <condition>;
9 A$ ~* e/ I2 F2 ?! T* S- w (4) for <condition> to <condition> loop
- x* g" i$ q7 W <statement sequence1>;
1 [& Y4 m S( Z7 F# A" V next;
g6 `& D! r6 D# B+ o: H3中断语句
6 H# |" @: P0 W" a# a+ G waituntil <condition> prio <integer expression>;
2 o8 _' P# g3 C+ i
1 e* n3 @- x' `9 f+ b' E- [1 O" W, s( j/ o4 [- I7 X, V
以上为常用的函数！0 z; q# }9 s) l& _8 h
还有很多，如有需要我把资料发到你邮箱里 ' z/ v' y$ Z* b. b
1 @3 ?/ F7 W: s0 b3 F7 ?1 ?
, D& J7 v8 P+ g7 l$ n. Y* U3 n" u" w. d6 _) Y3 X' L
) e F: j5 ~+ z% a2 Y, s% |) s1 ]6 ^6 w o+ s" [: E
. X( \7 f# z# G" W# a9 O* N* \# p! @
4 u- x5 o8 i% }0 a
: W. E2 W$ w4 G4 K, ?. G
" [- ^- N1 j { 4 s2 c A; g% J
|
|
[复制链接]
