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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
% f; N- _6 T5 B9 W# T0 Q if <condition> then
j8 {- w# v3 R <statement sequence1>;8 a3 F! Z5 [( s/ a$ I# I8 d
elseif <condition> then6 {. U9 T4 ~3 X& | X" ]
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:3 J+ H- ]1 s6 N# ]
inspect <expression>
- F7 ~$ O! Y: @( e$ }" `; _& L when <constant_list> then
0 X0 A" K8 v, w0 A+ y) ~' @ <statement sequence1>;
; a: \) b5 D4 o5 d when <constant_list> then
& k T6 F/ s" O <statement sequence2>;$ |# {& r: j/ {$ q
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else
, J8 M# S) Z! y <statement sequence3>;: S6 ~7 m- |0 L1 D6 {
end;7 Z1 K3 C8 c; o& D
! K3 h8 p& w& E6 {, H5 o/ x) E6 L2循环语句* }, E4 |; F) A" `4 [1 ^# i' p
(1) from <statement sequence1>
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<statement sequence2>;
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(2) while <condition> loop0 u2 Q. s# c. v' s
<statement sequence1>;+ Y" r) o6 U7 J. _, S
end;
# d* v" { ^% O$ K' f9 l& D, B (3) repeat - q3 T2 i$ t' E7 z! z
<statement sequence1>;( T7 ]2 h# E9 g5 f
until <condition>;0 [! C& {" C' {# b2 [
(4) for <condition> to <condition> loop6 R9 q$ j! R4 [1 b7 b# F. `& `
<statement sequence1>;
/ C- M+ w$ j) T4 A next;
* g6 ?% T; B1 m" Y; f# N$ f3中断语句
) ]8 ~! F, D, k# V' O1 f8 P E! i waituntil <condition> prio <integer expression>;- T0 ]& H- V1 H, o0 i
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以上为常用的函数!% N/ a" B( e7 c. [3 R2 d% F: p7 }
还有很多,如有需要我把资料发到你邮箱里 2 |( f& G% Y! }1 U
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