|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
6 g N; L! F. `/ b, a1 U+ g if <condition> then
+ u0 c" [% W# _$ J1 q2 A, [0 |( _ <statement sequence1>;
2 A" |9 {3 o4 K+ O# L% }1 E' Y elseif <condition> then
8 ~$ s/ {% ^. @/ m <statement sequence2>;8 f3 C2 p* k/ |, }! U0 S
else
4 ^0 b0 P; L* Q <statement sequence3>;
; r* \1 E; M @2 `. l( v. A end;& u8 h* W [( J% j0 b6 ?
如果分支比较多，用：9 K3 Q9 A" { I5 U. a! y- a# {
inspect <expression>
* [' J( b! z7 t/ m5 c ] when <constant_list> then% A$ j4 p9 ^' `' \" {7 `
<statement sequence1>;
g. s+ i7 `! i/ W% n X/ f1 ^ when <constant_list> then
! j4 G# C. {$ o& p <statement sequence2>;! G8 ?/ k2 d/ x& a
...
/ w: C& g: x5 t9 v& g7 l2 B; w else& W9 ?4 w% r6 v$ n
<statement sequence3>;
( ^* B* U! c, ]end;
8 e7 k8 r! P" q7 C1 F/ t
. P9 ^/ j3 F9 d' \& p2循环语句
6 H* h7 H- v( x8 [! p( ~ (1) from <statement sequence1>3 [6 k4 }0 f! e8 x
until <condition> loop
3 g/ g, b! e" o: z+ |* w <statement sequence2>;0 }9 h4 Z7 N- `# I, f
end;
9 l4 `0 V" H* w+ M3 \! I (2) while <condition> loop! f {) ^, n6 I2 U9 V( C4 p
<statement sequence1>;7 _! ~5 W# H0 G, B
end;. R' b, i w x$ y1 ]" z0 ^
(3) repeat
. `; E- G8 o4 a <statement sequence1>;" w: z' R% x1 I* E5 G
until <condition>;
: m7 Z0 X1 c P (4) for <condition> to <condition> loop
$ Z3 O, n6 g& B. ` <statement sequence1>;
; @' X, J2 N0 y2 R! O next;3 u& t* ~8 C3 Y8 I' [
3中断语句
( N y$ q! C0 y5 I! ? waituntil <condition> prio <integer expression>;# k4 [2 I' ^: a2 l. R, A1 T& B8 h
0 Y1 M% I h+ v
7 ?' Q: h" h" x% `以上为常用的函数！
& y- ]7 R/ D' l- B }( {. A% o; V0 s还有很多，如有需要我把资料发到你邮箱里
: A0 @! f( T' |6 h: v a0 X+ P# |& `4 n1 l. ]1 D- _; q7 e
' B5 i' D/ I6 n" q1 S3 b" z: v6 l- {" u+ b6 Q
' e3 N9 \* I( U* X5 L3 _
! H, N- T6 f8 R* |$ Y) o1 M
" [# j# b8 b( g& U2 E! h1 z% ] D# ?9 o3 S- {5 k7 o2 e
" W! Q& r. G: v/ `! N
M8 e6 T7 C0 x% |9 N a9 w; _! p, P# v - d3 L" m7 z3 R' F5 Q0 J7 J
|
|
[复制链接]
