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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) c) F3 \% P9 o+ {% b: k9 W7 O/ P1 c
if <condition> then2 N2 q: M. v z0 u
<statement sequence1>;. N( A0 ?. F8 s# l
elseif <condition> then; J7 J: | E! P- r& N! S
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多,用:
; ^2 v+ A3 h7 {* v( W! N g$ ^ inspect <expression>
- ^% K6 X! T4 u. `. C# ? when <constant_list> then* _* I1 Y T M4 m
<statement sequence1>;
' b8 D, z! d0 `0 M# a: ?# g( t& C when <constant_list> then
+ i( w" \0 _9 x4 m <statement sequence2>;
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else. i+ P/ A! _! m6 @
<statement sequence3>;2 J; m9 ~( G; E, H! t& I
end;
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& f) p' G3 M+ p! Y( X B. R2循环语句
+ i: Y. I F) { (1) from <statement sequence1>
4 e7 |' _, `3 s) n7 [5 r until <condition> loop
+ w' I( Z' U, t$ K" Q& B <statement sequence2>;( n* _+ e V: m1 l Y* j
end;
3 T l. _, ~8 d" M3 `: j (2) while <condition> loop
0 m) c: E3 l! n# T6 g <statement sequence1>;- [, v) R- N K* U: j; T
end;4 L! W% K2 i5 |2 C
(3) repeat
$ P* G. x; H. o7 d! v5 P <statement sequence1>;
/ i6 d# G2 n- k until <condition>;3 R1 r8 ? h1 G9 M7 K
(4) for <condition> to <condition> loop2 `, {% u# D/ u7 U' x0 s) C9 c
<statement sequence1>;
# X; j7 [+ ~3 B8 m Y0 x next;0 p. G2 |- y' G7 R/ m" d |* g7 d
3中断语句
! T4 Q7 `! F+ ~% C* L7 i' Y waituntil <condition> prio <integer expression>;
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) m# z8 I: O+ Y) i7 `以上为常用的函数!
1 X% V( s! O1 h# S0 I还有很多,如有需要我把资料发到你邮箱里
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