|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
1 q0 T( [+ v `( f) Z if <condition> then
" t; Y: N+ p6 @/ W% I2 w1 k <statement sequence1>;3 L4 t" ^1 ], |
elseif <condition> then- B% j$ t+ d" [6 t5 y
<statement sequence2>;/ z- _7 Q: T, I m6 L8 c% B
else # a w$ ^* k$ G- ~' ]
<statement sequence3>;
5 q# C& r3 j4 f: n4 U I end;
% T9 V% O( m. Y f# l+ A如果分支比较多，用：! s4 s% H- m2 @9 ?8 [
inspect <expression>2 w7 o' }$ E0 ]: u) h+ Q$ Y$ ~$ B
when <constant_list> then4 p$ ]1 T! v% @. P3 Q R8 a
<statement sequence1>;
. D& z7 ~( }% [8 ^ when <constant_list> then
! a1 n# ^' M$ ?( f' ^, H! V <statement sequence2>;4 {1 f( S0 u5 Y
...
& A8 y! l* p6 O: Y else
3 f4 p3 q3 m8 m1 P+ s* M. C <statement sequence3>;
7 u# \1 l. s( [9 K" ?+ J/ ?! Aend;
, x2 G7 l6 j: n! n+ O
, w6 ]: |; G* u' @9 h- p2循环语句+ V' _* {4 N& e+ ]
(1) from <statement sequence1>3 `4 ^& k l3 m; F, |: g5 {4 F
until <condition> loop
* Q$ O: E. w/ s& |( X" N, c8 j. W& F <statement sequence2>; c* Y- ^' Q5 N4 N0 K# z
end;- H/ @9 z3 r2 v" I/ M! \- y) W
(2) while <condition> loop
' D! v7 Q' ?& D, y <statement sequence1>;; e$ j1 j; _" Y6 J5 R
end;
0 z1 f6 H8 P( Z (3) repeat " K1 B4 `/ Y" c; e+ a5 J
<statement sequence1>;0 w. N& L: N3 r A9 i9 E6 j
until <condition>;
( j) R/ q' X+ @- l" c" J( A (4) for <condition> to <condition> loop& a4 _& |8 e. f/ d
<statement sequence1>;) i/ g. w L7 ~/ A8 H( s' V0 [
next;
5 u% u4 ?+ J" ?& U+ Y3中断语句
9 m) b5 G' U' w9 p waituntil <condition> prio <integer expression>;! P/ T, a$ P2 _" k2 q2 Z
4 I/ B+ _0 f3 X6 F
0 h$ d3 T' n4 P9 ~1 e. B以上为常用的函数！) @5 s' R( F! G+ D1 E/ R
还有很多，如有需要我把资料发到你邮箱里 v/ V* @5 ]6 I/ k }* ~3 v
) |, ]& Q. R3 K7 W; q& d
: H" N1 {# s' u# d" P- f
+ Y" c$ P- k/ y; q8 | 8 P3 O" E6 @4 B3 \1 r0 X% h
+ q' h# p, @9 N! P- C ^0 o4 }" K' m2 }* c/ A" t8 h
0 }" ~6 {- X4 I. m+ i2 s5 I
; z4 b; P5 n8 \8 M, S( G& A1 D* S' I [7 ~% F1 J
8 M; j1 z3 B' q |
|
[复制链接]
