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发表于 2012-11-13 08:48:12
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1判断语句% A. A& e% k/ t: o1 C; t8 {
if <condition> then m3 w/ A" ~4 `1 G" M
<statement sequence1>;9 e# T# R! O0 r. X& h
elseif <condition> then
0 |( B: _% n6 T6 l <statement sequence2>;
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<statement sequence3>;) }- j3 e( B; X1 m2 g5 w2 \ L
end;
v* `8 A' ~0 C& q& M! I, V如果分支比较多，用：( C+ C/ ]- q* j! \" N( X
inspect <expression>+ u) a& s. P) ]
when <constant_list> then
8 @& j1 a/ @6 ?; }, W2 N6 T <statement sequence1>;
w4 H5 O0 [6 M. J when <constant_list> then
9 J4 r1 a9 ]1 r8 p5 \8 r8 X <statement sequence2>;0 O0 m# E- J; Y) t' `: S5 `0 B
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else
! v. h8 N- p7 t9 H <statement sequence3>;
1 k: Y2 j) m; Z7 R) ?end;
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\7 m0 O Y4 T3 C: {2循环语句' h) i8 a. ~6 [; |' q
(1) from <statement sequence1>
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<statement sequence2>;3 F0 B) i3 h( T+ k
end;
3 A" ^2 p/ i# [' [' j0 _' r (2) while <condition> loop
7 t, T/ Y, }2 l" v7 t3 m4 h <statement sequence1>;' z# n4 E2 x3 M6 t# l
end;
5 z& V5 l( G% J0 @/ x; L (3) repeat 3 G6 x# P7 j4 O& s$ Q, }
<statement sequence1>; y! g7 @- C# E3 w- m( D+ {
until <condition>;
5 [( q# F' W+ h9 }# W* s ~ (4) for <condition> to <condition> loop
: j- a/ Y6 w" W9 v% x5 _+ T <statement sequence1>;* X& Y# Y* t. S! ]1 U8 o
next;# t' `9 ?. l) j# J) s/ _: R, `, L9 }
3中断语句( z( m' C* M% U* e! p- H. B
waituntil <condition> prio <integer expression>;
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+ z% Y9 U2 k3 M6 s7 R
以上为常用的函数！3 }2 s! T k4 f6 G' i2 I% `1 m
还有很多，如有需要我把资料发到你邮箱里
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