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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
. w% @" C5 F% y% d if <condition> then3 t( c- [$ Q) a, q8 T
<statement sequence1>;# t z7 u) j5 K+ e' _
elseif <condition> then# \0 w8 D' }0 Q* g, X9 R; E. `
<statement sequence2>;
' O- V+ X; T, N9 v9 w else * Y0 N! g4 t$ @
<statement sequence3>;% j7 g. ` J: v6 l0 W6 {
end;
; I( q0 ^/ Z E如果分支比较多，用：
( I; [: b+ M5 m inspect <expression>1 L, |1 B6 `5 |* C* T* \( D
when <constant_list> then. P- z5 R9 n- \" C
<statement sequence1>;
# b+ D+ a( y- X$ {2 x- @0 n when <constant_list> then
3 R* w! V- k! j$ ~ k @ <statement sequence2>;3 V# i/ o' I. X# i9 i- F- Y
...; r: R G2 f( J4 k
else U! \2 {, \- E {' l/ H# [+ _
<statement sequence3>;
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1 \; @- O& v3 x; {- L' ?2循环语句 j# c4 O9 N- @- G$ g0 o
(1) from <statement sequence1>
) A% ~* `9 k) h; y' Z5 z until <condition> loop! ]- |7 E! v* p/ H3 v( g0 a
<statement sequence2>;6 K; n5 G. u; ]
end;
) M, Z9 q6 l4 g# K/ ?5 I3 ~ (2) while <condition> loop
2 [* z" r8 f. ?. j <statement sequence1>;
1 b' f q1 e: {+ k2 c- ` end;) V+ v) \3 K- R: w: }' W
(3) repeat
3 u) i' o$ R) ^* K) E) E <statement sequence1>;2 A3 H! P& v: o$ X
until <condition>;
" q/ o" r, ?- g- ^; @7 @1 j0 ]4 F (4) for <condition> to <condition> loop
2 Y! h5 r7 F0 e% P( B% i; [& x <statement sequence1>;
5 @7 e* G2 v) M0 C- ?$ V next;+ {# g4 j; q; G$ ]$ R% B- |
3中断语句
' T0 `4 } L. N' I waituntil <condition> prio <integer expression>;' u6 u# B6 ?+ b4 `
' R) E5 U& |) p" L$ T" `. {
& T$ e/ T# E* C6 ^# Z4 a0 i |7 h: U$ Q以上为常用的函数！
. m$ J4 {# a" o! C9 g还有很多，如有需要我把资料发到你邮箱里 , @ w+ g' s+ c ~ t
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