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发表于 2012-11-13 08:48:12
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1判断语句
# E) V9 J% F5 n% s! P8 S' N if <condition> then6 j! L- a8 O0 Y4 s
<statement sequence1>;
/ V- w. P$ b8 D; o elseif <condition> then
: a( h2 c2 p- r: [% w$ Z <statement sequence2>;
9 G; f0 ?8 v5 w* {6 U/ f O else 9 t" |4 `3 \1 ]' I& D7 y
<statement sequence3>;
7 i% |, \9 y* A; n5 { end;
0 P! P; F# s3 s: @- N- P. `如果分支比较多，用：
9 O2 z$ A$ k) { m inspect <expression>) G4 W% j' B+ h+ ^; ]
when <constant_list> then
6 z/ v. J/ J" z( |5 W0 d8 u <statement sequence1>;
' F6 ~2 d0 w3 L2 Q when <constant_list> then. V" X, L! N6 m0 Q6 H# ~
<statement sequence2>;
) L- H- D: e& \1 H* | ...
. b8 D+ B# Q! g5 t( t* v6 D else
* C+ C$ I" X6 j, b/ h- R6 U1 {; ` <statement sequence3>;0 y' n* y8 X) R7 F* d) j" l
end;
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5 s F0 n8 T$ O q+ c3 k2循环语句$ ^) g. Y9 I1 u5 ^% i) M1 U
(1) from <statement sequence1>7 p4 J0 [- ]. {5 X, \+ v
until <condition> loop# P2 ?) R M3 Q. b
<statement sequence2>;
+ U4 ?# s& k6 V- Y$ z end;1 z7 c, Z+ R9 m; R
(2) while <condition> loop
; O" c: C; {" h" x* E/ h <statement sequence1>;8 ~% M9 N* N! }& O% x$ N/ }
end;5 @" z) j4 ]. o+ j3 E& f
(3) repeat
: Z/ h2 U+ n5 G( S* S4 z8 W <statement sequence1>;
7 _, f1 H0 q$ V" l/ C/ r: L until <condition>;
; t% v _7 a# C# n( T+ r (4) for <condition> to <condition> loop
9 _! s# Y$ [; l) ~ <statement sequence1>;
8 q: |$ `6 e; g: K3 X l next;, Q- l6 P: X+ Q( Q3 i
3中断语句
$ A( Y7 Y. @# {% G waituntil <condition> prio <integer expression>;2 P8 J+ x8 ]) T: u: C
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以上为常用的函数！, ]$ f; ]. p" I- T" Z& B( n
还有很多，如有需要我把资料发到你邮箱里
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