|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句( x& k! K9 ]0 ~4 k. J7 I" M7 F v
if <condition> then- C' Q7 b1 t5 }& o! ], L" R2 X
<statement sequence1>;% `5 Y6 r( ? L, y
elseif <condition> then
+ [0 L9 j' ~( F! K- T <statement sequence2>;4 z9 _0 d) P, V. I9 i: K4 l8 \
else
- z+ a$ g7 q8 A* q% N' N <statement sequence3>;
: k. [2 p" y. r) y end;8 J' }" P+ G- D0 z7 Q2 D2 g" H
如果分支比较多，用：1 Q; D& T0 ^7 M9 Z7 ^) P3 s
inspect <expression>
( L" a& L3 G' e4 |: | when <constant_list> then F. s5 U2 _& A0 k
<statement sequence1>;/ G6 ]% e! A* l- P/ w2 l
when <constant_list> then& z5 D# D$ O- r/ `7 m( ^4 [
<statement sequence2>;
; |( \$ \- s6 E! j5 M5 B ...
& N. f) l9 h# c& c else
( A ]5 G) y" p. z3 l <statement sequence3>;
$ c" Z. T+ I! Y1 y3 pend;9 z# T7 s( t3 a+ z
, c3 S$ x6 L: k# C2循环语句
9 I2 g6 C* w2 J3 w (1) from <statement sequence1>
4 Y9 i/ Y8 f9 M- Z6 @2 o5 R- q until <condition> loop# L E, k3 w, T, W
<statement sequence2>;
" f9 F/ a6 i" m7 @8 { end;
4 v$ U1 ?0 X# v5 U8 N4 e. f (2) while <condition> loop
& j" n1 f$ T( n* n, Q <statement sequence1>;" L$ D$ W/ {- o# }6 l" K. ^
end;
4 e9 w2 o9 w5 G# q% W: Y (3) repeat - q6 @$ d0 K) j7 `" K" b; G
<statement sequence1>;
! n, C" R; e3 {' B! y" d5 \ until <condition>;
9 ]) O! R' o, E' f2 n6 a$ Y1 X (4) for <condition> to <condition> loop+ V9 i2 E ]3 |
<statement sequence1>;
$ t* z" T; `% J& [ next;
; \) Y& U: { T# v! U7 l8 q3中断语句
3 y' j) \; w+ R+ U waituntil <condition> prio <integer expression>;+ ^: j; n& e7 }- M {& P
0 y7 C6 l7 e4 ?" Y7 a/ r7 e% ^4 R/ m) L8 A8 p: q
以上为常用的函数！
# L. U% z& Z) Z, M- H+ O还有很多，如有需要我把资料发到你邮箱里
6 g: h7 t6 }& l$ `% s+ D
2 n& h$ H' ^5 Z* A8 g1 ^
0 ?" p8 h# j9 D4 E! t* U" p9 b" `, k) K9 D
& s3 ~: `1 q8 [; ?0 K/ Q' y8 t+ t8 A7 S' d
6 q- L" V: _& ~; R
2 ^( \0 Z. ~; `
$ i: J9 G- ]& T/ x8 U* R) G5 A( M" ]
- w$ i2 u& z4 p+ t' [7 A - D7 q# _" y2 i/ i
|
|
[复制链接]
