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发表于 2012-11-13 08:48:12
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1判断语句, x7 u! n k6 B, G
if <condition> then7 W! Q8 B _! X. j% g" O
<statement sequence1>;
1 _& ~; c% y- J, m" ]7 V5 |9 A elseif <condition> then
0 g1 D: s2 {2 K" Q# ?% U8 m <statement sequence2>;
, J* v$ ~0 l) D% E G else & j J5 d$ b8 Y, B
<statement sequence3>;( j; t1 I! j- z5 o+ y
end;
1 \0 R4 c& \ ]- a' n如果分支比较多，用：& v" V8 y# L9 i% j
inspect <expression>
% r! N8 M- D& V& t' z" F when <constant_list> then# l& i2 ?4 }5 \2 x% f
<statement sequence1>;: D( I+ [/ g& J/ L7 u* O" E
when <constant_list> then
# O5 Y9 Q' D" N, b |3 v <statement sequence2>;0 D* f6 K1 \! p/ W; _4 ?+ C- K
...
- }0 B$ y6 T7 h7 e/ e else
e- D6 P1 l5 Q' d' h. ` <statement sequence3>;5 T& M7 A: b4 c
end;
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( J2 l4 n9 T+ W2 C' E' @9 D2循环语句& K- d8 i% c; Q/ n( j
(1) from <statement sequence1>: q/ S4 _& k2 M( q- q. ^
until <condition> loop
0 s$ \! }9 w) f# c" B <statement sequence2>;0 g: ^ j+ o0 C
end;0 P9 y9 h! Z$ U/ I) V( W5 D6 C
(2) while <condition> loop7 E5 B. ^( m2 Z0 F- ^8 E5 O
<statement sequence1>;
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(3) repeat
, k- @7 Y0 w2 V' P# {' ^ <statement sequence1>;8 ?+ }) O1 e$ W m/ j6 n$ V. y/ P8 @
until <condition>;- v7 A1 ^6 f. D/ S! B& C
(4) for <condition> to <condition> loop8 ~" t# O4 C4 ^
<statement sequence1>;
9 Z- ]( F# |$ D" i9 {, p6 ^6 V next;1 n9 f" ]+ W9 c3 o2 P
3中断语句
* ^) s7 t9 y) M, b waituntil <condition> prio <integer expression>;' a- S3 O1 o* ]4 G' T
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0 W! W* D. E1 I @$ }4 b以上为常用的函数！
3 p5 P0 C0 \& ~* G0 J还有很多，如有需要我把资料发到你邮箱里
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