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发表于 2012-11-13 08:48:12
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1判断语句% w! w* G0 u9 o* \, N
if <condition> then) F ~) |: C8 x+ E% V+ K
<statement sequence1>;, [& f$ _# ^! T1 q ^
elseif <condition> then0 k+ O0 k' Q# u8 j* z* Y
<statement sequence2>;" m4 b1 v' ]/ f6 A( S0 l4 A# ]
else 2 ?; V! u# t( E" g
<statement sequence3>;' _7 Q$ X' v I2 W& D( l& Y7 ?8 k
end;
9 S6 \! V( T- {! `: G如果分支比较多，用：
7 m( l4 S+ n8 S/ Z+ s# {9 p; e3 Y5 c7 O inspect <expression>
+ N2 A7 F) X$ ^8 ~% h; [ when <constant_list> then: V5 _( G8 Y4 \! j
<statement sequence1>;
4 y; ^, e* O" I! L" \. Q when <constant_list> then
+ g# D( n( n$ j <statement sequence2>;
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else+ g1 j; K! U5 |8 c
<statement sequence3>;
; Y9 ?& ^6 w/ w6 j% Oend;; @1 _6 h! B9 f( P5 Q5 }9 }
3 Q5 n( j$ D) H2循环语句
& f( j4 K y. \& @ (1) from <statement sequence1>
6 N8 N( b6 b4 X# J8 m/ r) u& l until <condition> loop$ s! w/ o3 b; W/ c- w
<statement sequence2>;
- I5 }' ~/ h" f end;* J" E0 H5 {- A
(2) while <condition> loop
- G- y9 u% D3 h5 L2 ~ <statement sequence1>;' t! a; `6 J- j
end;4 p) V/ D9 J. E, P; v6 ~* D( I
(3) repeat 8 m% H3 L, r1 V3 l9 A
<statement sequence1>;* X8 {2 u D# X* R1 |3 M
until <condition>;
+ E( ] Y# }& U* k( r4 w' U' E. v (4) for <condition> to <condition> loop
6 N( p- ?! c7 p. T9 ] <statement sequence1>;
; S3 E/ |( M* _! |/ w% m next;4 b1 b4 i$ R8 K" g6 R% _
3中断语句) X; ~7 f; i4 z/ T } C9 V
waituntil <condition> prio <integer expression>;; B& |. a3 {9 z& o
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$ C- D: v; V3 u5 f) o
以上为常用的函数！
' G. P1 r2 a) C8 x( n3 K2 M1 N还有很多，如有需要我把资料发到你邮箱里 + _' M6 \" E% H
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