|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句' p& A0 m* A! H
if <condition> then% [& n5 r; P8 }+ t0 R, N0 e, R9 D5 U
<statement sequence1>;
! G0 d2 P- d+ |9 M6 o0 `7 ] elseif <condition> then
6 |0 g( N) K* I& q& ] <statement sequence2>;
8 K# G P# h0 p else , Z/ G3 T1 |& t1 E
<statement sequence3>;$ L1 I1 ]! s4 g3 b: y
end;
' b3 V5 Z2 D8 W3 Y- ]如果分支比较多，用：
; U' R/ x8 E: I$ f! n inspect <expression>6 ~, k* f& |/ y, {0 c* V( Z
when <constant_list> then2 S$ f* K1 d6 o9 {* i* p1 E
<statement sequence1>;
- z7 S! R0 G$ I7 w when <constant_list> then. H$ N z( T( P% i6 ?
<statement sequence2>;7 G* e2 J$ L* o$ W7 S7 u" N9 j7 u
...& q% Z: ^: V0 E) l# X' `
else
9 W, Y' S4 _4 F- w8 B \7 e+ z: J <statement sequence3>;) r: l2 n; w- x h- X* x, K. m
end;
0 P7 Z; S0 b# U1 M$ h9 i) U: g" a3 V& Q- a. u( |
2循环语句# ^2 _2 @6 B8 ]3 ^- D1 @" k7 h
(1) from <statement sequence1>- {7 E6 |! G* h2 Y" W
until <condition> loop% S5 O7 A2 y# o4 f$ a
<statement sequence2>;
7 X& N0 h2 w5 O) p5 v* |0 X1 N end;
; @8 T- L* a% U# N4 o$ \4 H5 x K (2) while <condition> loop
1 x# H9 m: ~" b0 m, i Y <statement sequence1>;
1 _5 J/ Z% Q7 j7 ] end;
) z* C6 D8 W$ B9 `# }3 A (3) repeat
% D- w' B6 [ C0 Q+ ~/ n) p& i <statement sequence1>;
6 V2 J& g, Q3 l5 \4 z until <condition>;5 D4 O! O( g: y2 K9 C+ j" n
(4) for <condition> to <condition> loop
?" A! \8 ?8 y9 A3 E- O+ | <statement sequence1>;- I6 `' x7 {) s$ _
next;
- J+ W- x2 |$ D) t- Z) h; O3中断语句& n: H( S, }4 @( `; q
waituntil <condition> prio <integer expression>;( x, h1 H7 @- Q* u3 V! E9 ^' E! W
8 p7 t) Q0 F" t5 p/ [) m
$ T, s, J# m0 j% h' ]' [以上为常用的函数！
. k, X+ g" s" {" T7 t. }) e还有很多，如有需要我把资料发到你邮箱里
, @* \0 X8 }: {
# X( N ^4 B( ~! G& D+ Q9 f, q8 t( _7 N0 P' E5 G/ T# I
$ m6 Y% d* e# t# ?" I) @
3 e) `) p/ w, `+ R4 \
7 [; O* E% |* _0 _1 z* s* a3 I2 W8 p* T! K$ t, ^8 Z
& G/ ?3 g! a2 F
( G7 Y, L# O% h2 m. I# T/ u% [. q$ [) R( n* N! M, D
' i5 K @ V* J( z6 B% N- e
|
|
[复制链接]
