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发表于 2012-11-13 08:48:12
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1判断语句+ w' l5 C% m+ `5 g# R( x! G
if <condition> then" L. k b5 a) {; M3 J
<statement sequence1>;5 A# P+ N9 T; t5 _) D' r
elseif <condition> then, s# k u( D2 [: V5 x2 i& K7 ?
<statement sequence2>;& I# R- f6 N. V( G5 B
else
4 Z6 ~! |/ E- i. L8 `! D2 m/ [ <statement sequence3>;8 e/ ^: q% e! H9 m" A5 K
end;
- a+ }/ s, ^% H如果分支比较多,用:4 @6 f6 p. s: a6 x+ L- g* u3 {
inspect <expression>
* N. |5 y* m4 r# _ when <constant_list> then" l$ r' |0 q7 d* ^
<statement sequence1>;
" l; v/ J7 _0 p/ H when <constant_list> then) T8 ^& B# F) c) P' d8 }& I
<statement sequence2>;/ F) @- o0 A1 S7 Y+ N. ^4 J
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else2 y7 _5 f* a+ ^: X6 s
<statement sequence3>;
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2循环语句, i3 Z. m9 L- P4 h0 l/ X
(1) from <statement sequence1>, E2 T$ Z& Z' _" N5 b6 t
until <condition> loop1 r! Z7 m- u" g1 K$ h6 Q9 A/ p( t
<statement sequence2>;
* H/ B. t& j- I. w5 N end;
# `. f# I/ v1 l3 \ (2) while <condition> loop
( h4 f1 s. n' }6 I2 |9 z. h <statement sequence1>;+ g" s8 t) I/ H0 {. G
end;
% @( A! N5 p7 u1 j1 L (3) repeat ; t+ \9 o; e3 a5 l; d
<statement sequence1>;
- H5 A( u8 k. d x. X9 d; N* } until <condition>;
7 L5 ]3 j E4 U2 R3 b u) T (4) for <condition> to <condition> loop# m* R$ q: n& i- i' S" T- k) ?- v3 X& U
<statement sequence1>;
3 ~* N, g. L; U% H8 Z+ h7 Z next;
3 K# _1 ?4 Z2 f6 t3中断语句1 S6 P# s/ m( a
waituntil <condition> prio <integer expression>;# [7 E5 ]! g: j
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2 c$ E& }6 c/ v7 y. B; S以上为常用的函数!
8 n4 R& c# v9 }$ C还有很多,如有需要我把资料发到你邮箱里 9 O8 x+ T* P5 g; h
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