|
|
发表于 2012-11-13 08:48:12
|
显示全部楼层
1判断语句
( n1 D5 w& E: { if <condition> then
, n% L/ f+ v h6 f) E4 D6 L6 a6 } <statement sequence1>;6 C& B w" l# U, |) S" ]
elseif <condition> then; J) u1 a3 }# T6 L
<statement sequence2>;
, y$ N" m; o h2 s else 4 f4 a! P8 D/ q9 q
<statement sequence3>;
) R+ R1 ^4 k8 K end;
) |4 {- ~ D3 `2 G: s* T: H3 g如果分支比较多，用：
0 y/ Z, K2 [' H" f# | inspect <expression>
# T) A7 k4 p5 D! K2 O* ` when <constant_list> then
. K9 ^9 E/ d& I+ D0 n, L. B5 e <statement sequence1>;
; p6 P& T* g' N# b# R$ j6 D when <constant_list> then& c% i e$ u* Q# o1 C2 C
<statement sequence2>;
* ?0 y! ~5 a0 P ...! ]/ d1 t- K0 X1 A6 P; S- {& a
else- ~( c$ R6 v- J% A( Z8 v. \
<statement sequence3>;
# V, R: v. c( _6 [. Q4 Fend;( J( o3 R, P7 S4 V- j# u) K+ u/ |
+ \. R2 C# T, I1 Q2 T) |
2循环语句+ l7 \4 A$ T# }$ h, O% ?
(1) from <statement sequence1>$ o+ C* V t# s. Y2 Q
until <condition> loop2 ^$ v. U/ D ?9 h3 w9 f
<statement sequence2>;7 n! L A" m$ d" o i
end;
Y7 Q3 R4 H: U) @. Y (2) while <condition> loop: e; P& b$ I6 A. _4 Y G
<statement sequence1>;+ i: U! a- Q: @1 r. w# f% y* W
end;
" m6 B' }- q- f0 M (3) repeat
. L0 z# j. d+ b) e <statement sequence1>;
* s6 ?- ?/ c4 [ until <condition>;. ], B9 X' b- @$ L4 f. S
(4) for <condition> to <condition> loop
' I9 [# ^1 U% `% n/ U- [8 @ <statement sequence1>;
* L, |9 X. A+ t0 H next;
8 N9 i: j( `$ o9 d; P, c: U. ]& x3中断语句2 C* I' k$ e+ O% R
waituntil <condition> prio <integer expression>;. h. q( k8 v5 W' L( k3 F9 {
" A$ K' u& p4 b% ?9 z/ @# C: k# h" `6 n* t d
以上为常用的函数！6 V1 K4 Q# D, z3 n3 ]% Z
还有很多，如有需要我把资料发到你邮箱里 8 }9 M3 |& z/ n5 h w. r
: W+ K, I( y- P1 x% P
9 m S. t5 ^: H! W5 I: c
* f: [9 a& d9 w
g: h( v- \- m% D
! P' [' z5 X) R( M# t! F* p) G$ u& E- a$ o
% X; d$ K$ U0 P6 O0 c- X" G7 J9 a7 i( Z1 y( v# Q6 `& ]2 h
- x" t9 x- L8 [( @( E$ T0 c
6 Z4 C' s7 A) P+ ^/ C( ?' K |
|
[复制链接]
