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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
" F- \4 Z# n/ }7 R, F) u2 P if <condition> then( N6 Q8 o% z* m2 |
<statement sequence1>;- m# }& n" X; B7 F- J% Z( E
elseif <condition> then2 E6 ~: n8 [. t" U. {7 i$ I o: ?2 R
<statement sequence2>;
( h e8 F) N* H! T, H& `1 S! f else : I1 X& [: R9 H, X
<statement sequence3>;3 E, I, I6 A! h
end;
4 `3 e* P* ]% H; n如果分支比较多,用:" m5 q$ `9 H# k% L* [1 _7 C5 O+ u
inspect <expression>
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. c8 K" T3 M: i5 s <statement sequence1>;
9 k" q; W$ m. q7 @3 p when <constant_list> then
( Y! S5 S" K* H8 j9 o9 O <statement sequence2>;
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else( @' S w4 p# J5 Z* t5 d$ K
<statement sequence3>;% A% Q+ ?' C1 H0 C+ A$ K% p0 S
end;
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2循环语句
( B e* T5 F+ \! p% x4 O+ T (1) from <statement sequence1>
" u- S( O: D+ b until <condition> loop9 n; H i& Y' A/ K) k
<statement sequence2>;
' o; B3 U$ x# p0 W3 f end;2 F$ ]5 U3 h$ A7 R+ \ `
(2) while <condition> loop
( A! k& H n- {1 A3 R9 c& E <statement sequence1>;: b3 m3 \9 Q* u+ k
end; x* C5 w" J: L
(3) repeat
, p2 B- H% \0 x) o. q <statement sequence1>;
/ I2 x, N% T j) {8 @ until <condition>;
& ]6 {. I! b- \/ g (4) for <condition> to <condition> loop
4 u# b* a% ]' {: o/ r$ H <statement sequence1>;) @( F$ Q( @9 {/ G4 G
next;2 U5 @7 O9 s3 V c( I8 h
3中断语句 f* h7 A( l8 F- Z7 v+ [3 M
waituntil <condition> prio <integer expression>;
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以上为常用的函数!; M0 F/ T. T; }8 B0 H
还有很多,如有需要我把资料发到你邮箱里 , `- ~* _2 k6 Y2 k5 T
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