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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
5 K* h6 Q" G6 ~ f9 G if <condition> then, B2 k; M7 M, {* M0 F
<statement sequence1>;- O! K$ e3 C5 h8 [+ Q* `6 U
elseif <condition> then, x; `. m6 {' Q( W
<statement sequence2>;5 T. R. Y( ~$ M: h1 {
else ~0 B9 R" W8 _( |1 q, H" o! G
<statement sequence3>;) \1 g3 r f/ f6 v. ^) q
end;$ n" [- _/ G0 z- N3 I, V1 R! `) x
如果分支比较多,用:$ n* ~- G' U/ k6 W' g @ B; V3 O
inspect <expression>0 X& U- X" @6 p# p
when <constant_list> then
' g i" M y2 W) z( | <statement sequence1>;
" R9 w8 v+ e6 T$ x when <constant_list> then
1 A( V% f0 R' k; }; a$ r <statement sequence2>;) M% I; g3 M/ P. D2 R
...
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<statement sequence3>;
/ r+ z) D: Q' X5 I, Z0 \end;
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8 C! y; `+ U6 Q6 V2循环语句1 Y s& s- U. ^% N( L1 }& p/ r
(1) from <statement sequence1>' e! R$ X7 j0 Z0 R2 l
until <condition> loop
4 Q# S9 ~* }* K7 A <statement sequence2>;7 V P4 L8 h/ `, W( l; q$ p) A
end;7 d G7 L- c& u! `6 w
(2) while <condition> loop
7 D* a/ L4 H9 K- o7 e$ f, \ <statement sequence1>;$ t8 j' W) [, S: k
end;
( i. x' W% B0 J (3) repeat
% ^2 N1 d$ c) ^ <statement sequence1>;
2 E9 I! k- P: F until <condition>;
5 `- E; S7 s8 ^0 M+ p' H (4) for <condition> to <condition> loop
! z% E! x- r% c# j' Z <statement sequence1>;- C: w! i5 L% q' e
next;9 } \4 D8 ~+ W% o8 z& j
3中断语句
! P0 k" ?) Y9 L% c9 w: y; } waituntil <condition> prio <integer expression>;
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1 _% u$ i# b8 n' `以上为常用的函数!. T" g3 J0 q/ Q- t2 V1 P4 x5 }
还有很多,如有需要我把资料发到你邮箱里 , c' q. v8 \: l; B& w
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