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发表于 2012-11-13 08:48:12
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1判断语句7 j5 {, |) Y4 L/ J' z" U% x
if <condition> then
" j1 }7 _; j' n4 E3 J- X <statement sequence1>;8 D2 e9 _1 Q$ q' }* e: t) J$ L& {# g
elseif <condition> then, ]- D6 a+ K' Z0 ]. ]
<statement sequence2>;- V6 t' \# M; q( [
else / c# ~: l7 p! o
<statement sequence3>;
( {$ j n3 S* ~ end;
: `- |* G% i/ Z. y如果分支比较多，用：
; @" _4 h$ |( S3 M& c) ?& T0 ` inspect <expression>
4 Y; t; s$ {1 i6 }1 a" D when <constant_list> then
8 [, k% @, I6 k2 S8 d; O <statement sequence1>;
s- J+ Z0 E' n2 I! Y- d, } when <constant_list> then
2 \( ?5 y' R! T9 V <statement sequence2>;4 m: J6 {- Q# E+ ?) ^! f/ m
...
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<statement sequence3>; c e3 h6 x. O4 u+ t) T' d+ }
end;( p' e, k9 w' G9 X
9 r% {: H% }" Y$ V y- E2循环语句
/ ~( _7 w9 |0 m# c4 O9 E7 v% `1 } (1) from <statement sequence1>3 y1 M) x5 f) G7 g
until <condition> loop5 u( [; H1 i: N- f
<statement sequence2>;
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(2) while <condition> loop; m3 l" p; Y; ^
<statement sequence1>;1 n, B' z5 I& a4 h1 \' e h
end;/ C: i7 _: p7 a1 }2 d, [" X& f
(3) repeat
4 t. v& |$ H8 K+ C$ ]! a. ? <statement sequence1>;
" n" h. N5 _ x$ r until <condition>;/ i( U* Z& I4 x1 d
(4) for <condition> to <condition> loop4 B: p3 @& E! C+ X; I, N2 P
<statement sequence1>;
- O- |' _+ w) Z7 c2 S next;
9 \# V- T: S$ n9 T) t1 ^3中断语句
! n$ O0 I7 L4 k s3 Q( X waituntil <condition> prio <integer expression>;' f0 n) F, U5 O1 B
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+ U# e4 u# `9 [8 O7 J以上为常用的函数！/ [# S, O2 \. |2 P3 t$ k4 p
还有很多，如有需要我把资料发到你邮箱里
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