|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句8 J. ?+ E+ O( k* M, j) n
if <condition> then
" c5 u% s' p$ h1 m6 B; X <statement sequence1>;
, ]! o$ j0 O9 b$ M6 q elseif <condition> then- \2 z# Z: l k
<statement sequence2>;! m' Z' }# @ v2 K
else
* ]8 w% W& ]- q3 Z1 K/ r( w <statement sequence3>;3 r0 X0 S% b- s# o4 a7 U/ b
end;. c% o a' W; L, _' f& @! |
如果分支比较多,用:# e5 i' {5 B3 f6 P. v- [7 w. `* e7 j5 K
inspect <expression>
( w8 I8 b% _# E9 |2 t when <constant_list> then: @, Z4 S% o* }; _" @- K+ r
<statement sequence1>;
) h; V _2 ^$ C" b7 f/ I when <constant_list> then
3 j5 m" s" r& U <statement sequence2>;+ i/ x/ p# f6 @. _6 f8 p+ O
...( H0 @* @. V' ~, e* I/ g6 I5 X
else, K: g) Q* H H2 ?; o
<statement sequence3>;
9 s: I/ |& Q, {8 z4 x6 @end;6 t/ {; Q2 ` W
9 D" B. d) f* ]9 z2循环语句
5 W: `4 a; Q" f, B5 g (1) from <statement sequence1>& A* z; A5 c5 R
until <condition> loop- n) w, Y$ H8 I+ q4 O& n) J
<statement sequence2>;
/ l3 I, ]4 h7 \! x* i7 [: \' `1 x end;: c( W1 b( B8 C0 v
(2) while <condition> loop
/ Z. ^' b; f4 ~& `/ l l <statement sequence1>;( B9 C: F. N3 b# }( i6 M. s6 w
end;2 V( w5 C' L5 U
(3) repeat
* @% v6 ?( {4 |5 r4 Y- ^ <statement sequence1>;# k' c5 z3 G6 y, C
until <condition>;9 m" t5 J1 x W7 h
(4) for <condition> to <condition> loop
7 e% q2 J1 V4 E* X2 O2 I* z1 v: ] <statement sequence1>;) c% o6 T' D. K5 x6 f; K
next;9 \" g. T' U e+ ?$ a3 V; o* _4 a
3中断语句% N. c# ]' H( j
waituntil <condition> prio <integer expression>;- ` K D0 k) j1 V8 Q
8 h5 r, ]6 x, k5 K( S* x
6 A+ t& \+ X9 E$ d: f# g# Y; C8 B以上为常用的函数!9 }7 G. M( N; y) B3 _7 \5 x9 I& H
还有很多,如有需要我把资料发到你邮箱里
2 L+ G0 d- H7 k# U+ w" K+ [
# q7 }! f# K2 W! t
0 t4 w& g" q& n# i$ J6 F
: C' D# y: E; B : H" g' v) _' F
9 [7 u8 R( e/ s0 d8 }7 q
1 a: J" c% W& A2 T k
: h3 ^" b1 _8 d3 v* ~; B
6 p+ k# y' } ]9 p3 k
3 o. F/ D( y1 p0 w& C; R
) x* Z( `' }* o' y |
|