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发表于 2012-11-13 08:48:12
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1判断语句0 j5 c F/ H6 g8 f) S' `! ~
if <condition> then
% q" M1 S$ d7 Y" s1 E <statement sequence1>;
( S; o1 C: g2 {: l, C3 c2 L! d0 I/ c elseif <condition> then q2 Q9 z+ q8 d- A R3 z
<statement sequence2>;% l* ]! G0 k! r- N% E
else 7 p* m2 |0 B v4 v# u+ m, _
<statement sequence3>;
! M9 v r4 Q8 b9 ~( W5 n5 H end;4 ?/ s: x( O' x1 e/ s3 U! w: ]
如果分支比较多，用：! ?( H# H5 u$ d. N! v" D' b+ q9 {
inspect <expression>3 W8 X9 b+ H% O: G i8 a
when <constant_list> then! m9 X# }$ K) M4 F
<statement sequence1>;
" ]$ H0 Y/ B- N2 m3 t when <constant_list> then
# s. l- O6 r& k x' D2 u6 c# G <statement sequence2>;
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else4 k: R$ w& a# ^& q- C2 S' t
<statement sequence3>;; h! L1 r/ E+ o
end;
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2循环语句
! w" v5 L/ E0 J! M' r4 i (1) from <statement sequence1>+ L: K: ^: Y( V6 I# v! S' \
until <condition> loop2 G( y/ `" P9 \2 A
<statement sequence2>;
. g$ Y9 H: m6 o) V) y0 @, u end;1 I' _- X; K* Q, w7 [' b# d
(2) while <condition> loop- [% v6 T3 s7 O9 c, j
<statement sequence1>;; L, z+ k. z! h
end;
9 A; p& \( \& b2 X% N# D' |8 |8 _ (3) repeat
# ^$ u* U' Q& D: X; w x <statement sequence1>;; r( {8 G" c |% z
until <condition>;! B% n$ T) Z4 m; j3 A* g6 ^ I$ R
(4) for <condition> to <condition> loop' g8 t6 c$ q( u1 {4 [% }
<statement sequence1>;
5 V2 T( N$ `) f& s2 Y next;4 B, r9 l: ]# ?+ u+ W0 ?. u
3中断语句
7 x8 q4 @ d* t' K9 O1 F2 w7 g waituntil <condition> prio <integer expression>;7 t. \0 p4 T1 S% }6 l6 ]' Y
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以上为常用的函数！6 {+ |( R: t, j1 O, y4 j
还有很多，如有需要我把资料发到你邮箱里 2 F$ D1 }- ~3 g# i
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