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发表于 2012-11-13 08:48:12
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1判断语句# g& \" Q) D7 Q* Z8 i9 k; U6 Z
if <condition> then
3 K5 c( d1 M1 I7 n( y( k+ r/ y <statement sequence1>;
1 z* g1 ? T# Q elseif <condition> then
2 ]1 _$ E' n k1 a" g <statement sequence2>;
0 g( v4 {0 F- H# B5 U* v- z8 L else 0 t t0 t, f/ J( }" T" ?: z
<statement sequence3>;
6 r( H% c7 M X/ ?. f' R3 M end;
1 ?( d% \$ G% s3 Y* X如果分支比较多，用：
9 u: @- L1 M: ?( K1 o8 N inspect <expression>3 Y$ w% l. L2 x M) r. S3 ?
when <constant_list> then
* U# d. ^* V) v7 T+ W# m <statement sequence1>;6 z1 `8 G1 X1 T7 j9 n
when <constant_list> then
. ]# P* q/ a4 C7 i2 [) Q; | <statement sequence2>;3 o3 l) m0 v `$ s
...7 q) D; b. k# z5 H% m
else; a; q5 n' G1 n. f" s" D( V" Q
<statement sequence3>;( Y$ Y( [+ Z6 @4 `5 c
end;/ x5 ~( q7 T; A2 P; m( l
" P( @/ E% U9 \2循环语句) r6 P) ]1 A+ j% h, b0 x
(1) from <statement sequence1>
% h3 v: K* S1 t until <condition> loop
2 f" @9 v, }% X0 x" N) J5 J' y <statement sequence2>;$ P; i8 N2 X$ r8 D" R
end;; n" J: l& `" e! s' K
(2) while <condition> loop
- G1 ? c( D8 \+ a8 a6 V <statement sequence1>;; o( @+ R$ j% f. b
end;9 ]6 ?# e; F) A+ V: o: o. f
(3) repeat 2 I9 T/ r" |, [% s
<statement sequence1>;: Y4 [3 V% W! G: K
until <condition>;
' L& b: y" R; j1 ^- x' v* ` (4) for <condition> to <condition> loop
+ u$ ]" n; B9 y9 o( K9 n& _/ H; J <statement sequence1>;
" M4 P6 Y8 P3 c% E9 f. W next;
2 P3 b2 e) D0 |- p6 y L3 d' `% u# ]3中断语句
7 K7 G5 f. R$ u I3 |, U waituntil <condition> prio <integer expression>;( v; l5 ]! t! S
" L: q- F s& E! K' h0 h$ H+ I
6 N5 k/ {! t* \6 Z7 e以上为常用的函数！
- {& Q5 M4 y" q" }还有很多，如有需要我把资料发到你邮箱里 : i; p) O0 }3 G" ^. {
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