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发表于 2012-11-13 08:48:12
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1判断语句( ^8 K: c) Z3 b& k4 U# T
if <condition> then
' g8 N" q8 P1 w" c1 N0 w% H <statement sequence1>;
5 V k0 e6 i5 \. r5 ]/ ]5 B7 q elseif <condition> then
' I7 X# Z6 a8 Z. @) y <statement sequence2>;
0 ~* m3 c* [: h3 ^+ j else + ?' U* i) v! s
<statement sequence3>;; j2 F6 b3 i8 \. \
end;
/ [- g3 A- S3 }如果分支比较多,用:
, A# m) ]9 y, a% t; y inspect <expression>$ o, b' R1 p; a3 Z0 ~
when <constant_list> then# \" U4 H! L8 K7 }
<statement sequence1>;% u+ w' f1 ~& J( x; {- X
when <constant_list> then
+ N4 E6 B* q& N0 P+ U1 ? <statement sequence2>;
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else9 }1 C F! g% Q5 ?9 D
<statement sequence3>;
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8 F$ W% _4 t- }% x- r- n; P2循环语句" L3 X2 c2 }" Q* Q$ p
(1) from <statement sequence1>5 x. H' }3 z, x+ b" H2 ^
until <condition> loop
: q; F) X$ N0 h D2 Y+ ? <statement sequence2>;& u" S$ \8 V- s8 f9 `
end;
% g* i' |( b1 ]% \; a N& g (2) while <condition> loop6 k! `% `" ? p9 N9 O6 F
<statement sequence1>;( D: `6 o& b8 b$ u& n
end;
& P( C; E9 A6 @" V (3) repeat ; [8 Z! q8 d/ W) l
<statement sequence1>;
" J0 o( j3 a- W until <condition>;& D1 N( `1 }# ^8 m
(4) for <condition> to <condition> loop" j7 A3 L' |* B
<statement sequence1>;+ K* t! H$ Q: Z0 b. Q/ r; D' W
next;
T2 r6 q, ~5 b" X% w3中断语句
+ G2 o8 f3 x0 f% Y9 N+ o+ R waituntil <condition> prio <integer expression>;- T+ G9 ^9 q2 J* b/ F# ] ]4 u
K a0 v2 l$ I. p
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以上为常用的函数!
. h- y r7 Z. l' ]1 i* V还有很多,如有需要我把资料发到你邮箱里 6 \$ x3 D- e8 I
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