|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
( F8 r7 {& h' C$ l b+ m if <condition> then
/ O( u2 D0 @3 U0 H. j, x <statement sequence1>;. S- ~: y( {/ `* {' Q! u
elseif <condition> then5 ^9 {, U" F+ y' W: u: X" D) C
<statement sequence2>;+ O2 V3 T9 }% ~" N9 Q1 n/ Z {
else
* _3 o) B1 t* B M4 d <statement sequence3>;
+ |0 [9 X0 Q9 Q/ e5 J" u# r& ]) y end;+ j2 H0 A2 M4 Q' G/ Q
如果分支比较多，用：1 O) c) W" z5 W1 F: p
inspect <expression>
( F. n6 d; s8 n& }: w+ } when <constant_list> then; u3 y) l" E- a9 T; @- ?+ p, k
<statement sequence1>;
# \+ }$ E3 a$ h& S+ y r- e# R% Y when <constant_list> then6 R8 p) B5 g3 p- S# _
<statement sequence2>;
5 U$ G8 Z# }& D$ H4 S9 R ...9 N1 u: P# B- i2 F
else& x+ s3 _9 l1 ~/ Q. j
<statement sequence3>;, C- n! x4 z3 `8 \- `
end;4 N2 N, k) R0 r1 A/ R8 m& ~
6 Q! F* g/ K. P& N
2循环语句
$ M/ b. J: t- f1 G1 u1 O8 n (1) from <statement sequence1>
U, p' g" b7 ]" u until <condition> loop
7 c+ F& ~2 e* y <statement sequence2>;
1 G/ V* @; i' ~5 }* Y2 T) K: w* L end;2 F- V5 D% b V7 X, C& K7 O
(2) while <condition> loop
* z; `) D' G! u( ]2 S6 n0 { <statement sequence1>;
( y. t# J g- S end;4 M" H8 w) h5 o
(3) repeat , l7 c- u6 D3 Y! q1 q+ Z- I
<statement sequence1>;
; a# q* k, Z6 N) g until <condition>;6 R7 k, P+ b; I
(4) for <condition> to <condition> loop
* \2 s7 M( \; U7 c: Y' Y4 H5 t <statement sequence1>;" v) B! a6 A. ~; i2 |- [, V/ h9 E
next;/ @, C! ] H9 F5 J n' M
3中断语句
' }0 R, Z# w R- t: X! ^$ Y waituntil <condition> prio <integer expression>;
( x; i- b% l# j; B, y, `1 q6 m% v" E* v8 Q
% T: I, ~8 F- g" q+ `0 D% j; \2 x以上为常用的函数！1 c. {) Q1 c, K
还有很多，如有需要我把资料发到你邮箱里 / z& q: _ i. `4 b! B
' t6 X, R9 [+ I3 ?1 S
7 X# @' }/ ?$ @2 Q2 {( p
9 x c1 b* ?' q+ z0 A A : _4 ~) N2 q, p9 g8 m
/ c$ O6 Y+ @# u& P+ |; A
. @+ s7 r+ U/ O( C g' c; m% y L% H! g A* D" O0 m/ h" d
& t( N' ?; Q. z4 _( P" i" t9 B, n) _9 q/ h; ^
/ y' M; X' H$ {, u, h/ B) b
|
|
[复制链接]
