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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" u) b3 ~8 ^" Q5 A
if <condition> then- N3 u: A- e/ T2 U3 @
<statement sequence1>; N) |8 e8 [8 \- B. }% G
elseif <condition> then
2 D% V1 I% t: x <statement sequence2>;2 A2 E$ B: q, u8 T
else " O3 e/ p3 w; M; M
<statement sequence3>;
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如果分支比较多,用:
/ ~8 @! `: S1 J3 y& G5 b) J( [; } inspect <expression>
* ]( z* R Q. ~4 p. R4 R) I; A when <constant_list> then1 x5 O6 j! A, E" y5 z
<statement sequence1>;+ e" h7 P0 h) Q! b, d$ F! H! S
when <constant_list> then
6 e8 v q/ U) ^& R. @, K) z* I+ J6 f <statement sequence2>;
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else/ Y+ S/ \# W0 I6 | Z
<statement sequence3>;3 B- q" d6 Y1 q) ]. b' x' b
end;
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2循环语句
/ W" n+ ~2 ^# m- |" v8 |; T4 \ (1) from <statement sequence1>
; C/ w6 j& l# i; `' t2 m/ \( U until <condition> loop2 i6 Y8 h5 }' o3 y4 ]2 u) W- B1 \
<statement sequence2>;3 K9 Y% g5 b6 }5 d9 J0 h" m
end;% F9 z$ [$ s+ ~0 s; ?
(2) while <condition> loop
2 |: S+ v; j2 f4 X+ R7 @ <statement sequence1>;, @; H( W0 l9 u z+ P
end; v8 e8 B: T3 A9 x" S
(3) repeat 9 p+ D( k4 n! c% z: k; o+ o9 u4 X
<statement sequence1>;
\" d$ a2 z) S" d( Y$ t* t6 m' U until <condition>;" d" j+ m2 b+ t: i7 e
(4) for <condition> to <condition> loop& I! `4 h! ]0 _% h
<statement sequence1>;
- h+ J$ H" r3 Z next;# H0 y$ Q0 \: Z1 O0 d
3中断语句
: Z+ ^: [1 G8 n- n7 B1 U% _' ` waituntil <condition> prio <integer expression>;0 R& W& }) B) ^& p' H& j0 R/ D. Q5 z' I9 \
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以上为常用的函数!5 a+ x3 F/ w2 e/ S8 S
还有很多,如有需要我把资料发到你邮箱里 1 p$ E6 _2 r5 B% E: s4 l0 v L
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