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发表于 2012-11-13 08:48:12
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1判断语句
8 Q. L1 H6 U# a% A3 q+ Y if <condition> then6 [7 N( z6 B0 k
<statement sequence1>;
" J4 P* A3 A9 O$ G0 N4 [ S" V3 ]8 R elseif <condition> then/ b! u$ r$ c; g0 ~! y
<statement sequence2>;! B8 r- N2 t3 x
else " b r6 }5 b B5 j" k
<statement sequence3>;
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如果分支比较多，用：
+ @; j o- n# m inspect <expression>
! K, G$ a6 B+ `0 d' H" q when <constant_list> then1 {; X' }) A- v( u
<statement sequence1>;
# h# A! L% U; z. ~ when <constant_list> then9 X% R. e- W: e/ k! M
<statement sequence2>;5 J- e( }8 q9 t, R/ a: J
...: b: r% c' @+ [- J
else$ F. ]5 a" }7 D3 N9 C. O3 y- i
<statement sequence3>;9 c7 n- i; \. T) m/ _" e
end;
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: W4 _! X6 A& A6 D" H2循环语句
2 h: D9 w% T* [. y$ B1 g! w& t (1) from <statement sequence1> ^1 u# s( P) V$ ^
until <condition> loop, F% t" L: E+ X4 N+ L: d( i
<statement sequence2>;$ S# L2 O+ ~% Z0 N1 Q+ D: j" h
end;" M1 m3 \7 p1 H7 k
(2) while <condition> loop2 _/ G" w9 _- n
<statement sequence1>;
& Y+ P1 ?% _0 K end;
! t( w! f, }4 D0 B (3) repeat , u- c" z; a& l5 A8 {5 s1 N
<statement sequence1>;% J4 H: R/ p' I! o
until <condition>;4 O9 e1 x8 i9 c0 g0 r$ f' X- @# W
(4) for <condition> to <condition> loop' O7 O `3 P! \3 O$ ~* p
<statement sequence1>;
( i- K, l0 K+ e4 w2 F9 m. K next;0 T& L- I1 t8 t0 r
3中断语句
/ G8 A' F- C# D4 S# l2 A waituntil <condition> prio <integer expression>;* g" p2 W @' C5 ?/ K: f3 o
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7 g- B7 P- M' h' w( w以上为常用的函数！) L5 \6 S: J* \! N1 W" q; H
还有很多，如有需要我把资料发到你邮箱里 5 U% @% p$ f# m
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