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发表于 2012-11-13 08:48:12
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1判断语句
! L9 ^- c9 v* p* t, Y. I if <condition> then# T Q. I% {2 x3 W J: a* s5 ]
<statement sequence1>;8 s. _0 ]5 Y, @) F0 a
elseif <condition> then5 y& T: P+ a7 B
<statement sequence2>;
9 r+ M4 t+ ~6 O- d0 C' z else
5 Y4 ~ E$ r* \4 `) J' o <statement sequence3>;5 ]0 {9 Z( u7 Y7 N
end;$ U/ v- t' [) O1 b9 k
如果分支比较多，用：- q4 P. n4 a9 }7 r& I4 ^
inspect <expression>
0 \# o5 k) y' F3 O0 ]! z& d when <constant_list> then( U# P3 K7 S. C6 I" s% h
<statement sequence1>;
- O( L7 ~5 U* ` when <constant_list> then
2 { @8 }3 ~& D, r( H# d' k/ f <statement sequence2>;6 `/ @: y; t# B. V& z+ i, e% X
...1 Y5 w; z( D7 z; A; j3 W- Q% i
else
7 B4 e$ q+ r& R% [ <statement sequence3>;
; m* y9 n/ W6 _end;
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2循环语句6 q& N. z$ d! K2 G9 _
(1) from <statement sequence1>: l1 w9 T1 z5 i
until <condition> loop
4 v3 {* |/ h$ ^- J$ E <statement sequence2>;
: X3 C8 { ^0 e* U- J& ]8 b end;7 \- T9 A- c8 T4 N( D0 V
(2) while <condition> loop
5 ]& }: k. N" S4 u <statement sequence1>;! c6 k5 S+ h* `) w! o
end;! \: |9 _2 ~' Z% H& \# i
(3) repeat ; X7 S* l; Q" m% H. H: }, d
<statement sequence1>;
4 [+ j, c D# ]/ j [8 W' V- q until <condition>;
0 q& z% s3 a8 `+ i* P, P) K (4) for <condition> to <condition> loop5 O g+ G+ H' B* q0 |7 I' Z2 e
<statement sequence1>;
, N9 g( V/ [6 \9 g2 M next;
9 U$ _ y& p7 v8 B3中断语句& b U: Q3 X( }* G; |: j
waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 q( c: M w, k3 P8 l6 c
还有很多，如有需要我把资料发到你邮箱里 ! {; w4 |$ f$ k6 z5 \ d
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