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发表于 2012-11-13 08:48:12
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1判断语句
/ k, X& s2 S s; l% C4 A if <condition> then
1 m/ a) G: Z1 W, \0 { <statement sequence1>;
0 v; v U N" o elseif <condition> then3 {/ {4 n' V/ v0 ?
<statement sequence2>;
) O" b0 t5 d6 e else
2 H7 V* }( R8 o1 u- ` <statement sequence3>;
7 y; `% s$ F7 W$ G/ u end;8 V- ]4 d. y' @
如果分支比较多，用：) f' r- ^1 t2 O' H; `% a
inspect <expression>2 _ D7 [) h2 v" M( o) B# p
when <constant_list> then- U" z! X: Q) S. P3 J2 O
<statement sequence1>;
; |. A3 x" E0 i8 n) b! Y. Q when <constant_list> then
5 W8 Y& B( F; `: G* j+ ?% d <statement sequence2>;
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else" ?7 P: i' a/ q$ a* }1 @6 Q, ~# P% }
<statement sequence3>;
# g" S1 O; b2 G o! jend;
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2循环语句: B$ _6 A1 z1 `# g/ k
(1) from <statement sequence1>$ x. e$ `/ H L2 W
until <condition> loop E4 a- i5 h- K) N* y
<statement sequence2>;
% J v/ D: s" a end;& S1 ?5 ?3 r" e1 U
(2) while <condition> loop# A" d3 w8 P1 O3 t+ C) `0 e5 V" d
<statement sequence1>;
8 K: ]1 k$ ?7 q8 b4 f end;* e* ?4 T* S: X# _+ b
(3) repeat
8 a$ i" u0 H( n8 } W) Z; W- \ <statement sequence1>;
5 g: {: L) V7 Z. w; W until <condition>;0 N! E+ _" P8 J* x5 i" d2 P T
(4) for <condition> to <condition> loop
6 I2 N/ p c. Z& T# `/ u; y O# s <statement sequence1>;( Y3 X& n# B7 q6 M! u
next;" _* D- ?2 _( w
3中断语句$ a/ y& P. d. {0 n' ^ P. Z% D0 ^! k
waituntil <condition> prio <integer expression>;
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4 p/ P! X Z4 z/ q6 J以上为常用的函数！0 K6 } _' H9 f
还有很多，如有需要我把资料发到你邮箱里 # [8 p6 D; [; s( O! z {3 j* Y& K
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