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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
) R- E. j- a6 n2 h" {. e3 _! L if <condition> then
0 C: J5 h" X' R) v <statement sequence1>;
% r* l& F- m$ l# t; J2 o2 ]: E% [% K elseif <condition> then& i- \1 b0 e# v+ |& ]
<statement sequence2>;
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<statement sequence3>;: R4 L+ _5 D" v6 }- K& M
end;
$ X+ u; i4 Z3 |1 Q" E9 d( |& k如果分支比较多,用:! d; i6 ?" Z5 i0 ^4 T$ H2 `
inspect <expression>& N- L6 Z. z. ^: [- S
when <constant_list> then+ B! G( w) e; U+ c' v% {" h
<statement sequence1>;5 x8 A- Y! D6 [" T( @$ d
when <constant_list> then, {& }; }5 }" `+ @' ^- |( @2 G$ D
<statement sequence2>;! s& y* [; m( E, p& e; s
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else
3 X5 ^9 u. M0 r& ~ <statement sequence3>;
, Q' g+ |4 Z% G7 @/ xend;4 P' n: |4 B' V6 |; p
; a4 _% B! N& Z6 _) I2循环语句! U0 i+ h/ W3 l+ P
(1) from <statement sequence1>
% c) m# ?' u8 l until <condition> loop, ~; M; r }% i- C* n
<statement sequence2>;, M2 `* e1 @5 l6 L8 j
end;
% ^9 o, T5 }, Z! M% Q l6 { `! b (2) while <condition> loop
# r% b: l# V+ L) R ` <statement sequence1>;
9 m4 r2 e2 E+ {" Z5 y0 \, H end;
1 p/ P8 @" S; r9 i (3) repeat
# y D5 d- O3 v$ \# U( ?6 |; H <statement sequence1>;, I1 k% k/ x" Z, S; d( q* H
until <condition>;
" e. Y! }1 w1 q+ D4 E# g (4) for <condition> to <condition> loop
' A, X# l) W9 h, j. Q <statement sequence1>;
' _" m) C2 D. {) V" B next;
& h* u5 [* k+ {3中断语句. d) x) m" q' p- r' b
waituntil <condition> prio <integer expression>;
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以上为常用的函数!" h7 t! P4 |+ H! W# \6 r
还有很多,如有需要我把资料发到你邮箱里
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