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发表于 2012-11-13 08:48:12
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1判断语句
3 m5 {- c. S0 Q4 v if <condition> then2 l q/ j& G- f! M/ \3 t
<statement sequence1>;
% O9 p3 i0 T: K: s/ P( @ v elseif <condition> then
8 Y- ] H& o1 s/ S! m/ U" H/ I9 u <statement sequence2>;* {6 H* G. t8 I- `4 }6 x
else
- E- |1 J* h8 n) O0 w0 S <statement sequence3>;' N T O! s( s7 n* g0 c/ U6 h
end;
- a! F8 U3 X$ t如果分支比较多，用：
( u9 r+ d C4 Q* l t% | inspect <expression>
6 Y+ L& c9 _9 j when <constant_list> then% [' l& b; Z" s$ K& E
<statement sequence1>;) H( H: r( D2 b7 U
when <constant_list> then
( Q' t3 \8 X2 w( r <statement sequence2>;. ^6 y- k# Q6 d. W2 `
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else m0 |) P- ^) v3 W/ b7 d1 |
<statement sequence3>;! l1 V/ J8 @% L3 G1 j' c; e
end; P. o1 f) \0 ~' e7 d* M. R' S
& }# h9 }8 s% Y1 {+ c7 ]
2循环语句$ F% F3 i' |* ]* Y' M* }
(1) from <statement sequence1>$ Z: O: v7 e5 k
until <condition> loop# T5 }% t- x, N
<statement sequence2>;
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(2) while <condition> loop
8 |2 P9 f6 E4 {1 K) X# }! v/ } <statement sequence1>;5 Q7 G# B# c0 w& [8 n
end;2 A3 Q$ ]- B3 X- F4 W
(3) repeat & l- m |" L; R+ Q2 s4 g: X
<statement sequence1>;) {; V: L5 O( V* ]. l( {' r
until <condition>;
; @# R/ n8 ~) H$ t; b- c \% R (4) for <condition> to <condition> loop
$ P- C- J$ D, V# R* c <statement sequence1>;
; S! e) H1 S+ u8 w ^ next;
0 y0 }4 z6 A- y9 t4 _' z8 u* G3中断语句1 W' H* H% L$ L8 x& _7 m: y
waituntil <condition> prio <integer expression>;
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( S. V7 \8 K. X* M% Z1 ~& q7 }以上为常用的函数！
/ }! X$ t, d; ?; R7 m/ i$ h; J9 }还有很多，如有需要我把资料发到你邮箱里
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