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发表于 2012-11-13 08:48:12
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1判断语句
- ^6 W" ~6 Q' f# c: {+ ^+ T if <condition> then
2 X( P I& y: `$ r <statement sequence1>;' b& W% K: S8 F9 {& w) A( h6 Y
elseif <condition> then
R3 B" w' l9 d+ P8 \ <statement sequence2>;
9 }3 c$ X( E8 \; X# ?: j else * e- Q9 R2 u9 X: @+ @% u
<statement sequence3>;# g2 T I$ U3 a4 Q- A6 Y% E' s, `
end;
& ^& |: g8 ?9 m0 z如果分支比较多，用：
/ M- |! j/ M1 p$ ~( f+ J inspect <expression>
' _6 J' g1 T/ W/ q. j* u when <constant_list> then
t$ b4 J3 W0 A <statement sequence1>;
( y* H5 p4 F# |9 K3 |0 t4 l when <constant_list> then# C# I# [% ?. t% D5 |+ a7 i) t( r+ p" Z
<statement sequence2>;. I" x ~' x* }9 |2 V6 Y( S
...
4 I; N4 h% e, | i H, O else" q! A; h* m$ i( C
<statement sequence3>;
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2循环语句
: ~* \+ B! x+ L" C (1) from <statement sequence1>
5 ^$ w" E8 W3 y6 `2 I2 s: @ until <condition> loop! L1 y( H i3 ]" [
<statement sequence2>;
0 n& Y; j; a" x9 F, c7 Y# C end;5 F' S; R. m3 j/ ~# i+ p9 R
(2) while <condition> loop
9 k$ a* s# m, ~' l# v <statement sequence1>;
5 \$ e0 P; |% M6 x" [! K end;4 v, w- L% l% `; q5 w3 c; \5 u% `
(3) repeat 7 U4 }; Z+ }% s1 k- Z/ I& q. c
<statement sequence1>;
; ^, {' G! J# I' U# L& C* W/ l until <condition>;4 g# [. N* { n- ]3 \3 k- `5 E
(4) for <condition> to <condition> loop) h! e$ i. W& ?5 h" O% t
<statement sequence1>;
' [$ ?/ \% w: e7 M5 q5 } next;% s B; J- V" f5 v; i7 k
3中断语句9 ~7 d; r: W4 F( y9 t
waituntil <condition> prio <integer expression>;1 c9 X7 H H* l4 n4 \( r! m& `
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以上为常用的函数！
0 v5 R5 `; h7 U1 s8 [: F还有很多，如有需要我把资料发到你邮箱里 4 F5 {. S8 K& W; A5 F3 F) {' p; _: g
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