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YZG
yzg-util
Commits
7e8d62a0
Commit
7e8d62a0
authored
Feb 28, 2021
by
yanzg
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Plain Diff
公式处理
parent
d503db91
Changes
1
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1 changed file
with
10 additions
and
21 deletions
+10
-21
CalcHelper.java
...src/main/java/com/yanzuoguang/util/helper/CalcHelper.java
+10
-21
No files found.
yzg-util-base/src/main/java/com/yanzuoguang/util/helper/CalcHelper.java
View file @
7e8d62a0
...
...
@@ -103,6 +103,7 @@ public class CalcHelper {
* @return
*/
private
static
double
calcProc
(
String
formula
,
Map
<
String
,
Double
>
varValues
)
{
double
ret
=
0
;
if
(
formula
.
matches
(
REGEX_QUOT
))
{
// 获取第一个括号和最后一个括号
Pattern
p
=
Pattern
.
compile
(
REGEX_QUOT
);
...
...
@@ -110,23 +111,9 @@ public class CalcHelper {
if
(!
matcher
.
find
()){
throw
new
RuntimeException
(
"正则表达式错误"
);
}
String
left
=
matcher
.
group
(
1
);
String
quot
=
matcher
.
group
(
2
);
String
right
=
matcher
.
group
(
3
);
double
quotResult
=
calcProc
(
quot
,
varValues
);
if
(!
StringHelper
.
isEmpty
(
left
))
{
// 左边的值
double
leftResult
=
calcProc
(
StringHelper
.
left
(
left
,
left
.
length
()
-
1
),
varValues
);
// 左边和括号中的值计算
quotResult
=
calcItem
(
StringHelper
.
right
(
left
,
1
),
leftResult
,
quotResult
);
}
if
(!
StringHelper
.
isEmpty
(
right
))
{
// 右边的值
double
rightResult
=
calcProc
(
StringHelper
.
right
(
right
,
left
.
length
()
-
1
),
varValues
);
// 左边和括号中的值计算
quotResult
=
calcItem
(
StringHelper
.
left
(
right
,
1
),
quotResult
,
rightResult
);
}
return
quotResult
;
double
quotResult
=
calcProc
(
matcher
.
group
(
2
),
varValues
);
String
formulaTo
=
matcher
.
group
(
1
)
+
quotResult
+
matcher
.
group
(
3
);
ret
=
calcProc
(
formulaTo
,
varValues
);
}
else
if
(
formula
.
matches
(
REGEX_CALC_ADD_PLUS
))
{
// 判断是否包含+-运算符号
Pattern
p
=
Pattern
.
compile
(
REGEX_CALC_ADD_PLUS
);
...
...
@@ -136,7 +123,7 @@ public class CalcHelper {
}
double
leftResult
=
calcProc
(
matcher
.
group
(
1
),
varValues
);
double
rightResult
=
calcProc
(
matcher
.
group
(
3
),
varValues
);
ret
urn
calcItem
(
matcher
.
group
(
2
),
leftResult
,
rightResult
);
ret
=
calcItem
(
matcher
.
group
(
2
),
leftResult
,
rightResult
);
}
else
if
(
formula
.
matches
(
REGEX_CALC_MULTIPLY_MOD
))
{
// 判断是否包含*/运算符号
Pattern
p
=
Pattern
.
compile
(
REGEX_CALC_MULTIPLY_MOD
);
...
...
@@ -146,12 +133,14 @@ public class CalcHelper {
}
double
leftResult
=
calcProc
(
matcher
.
group
(
1
),
varValues
);
double
rightResult
=
calcProc
(
matcher
.
group
(
3
),
varValues
);
ret
urn
calcItem
(
matcher
.
group
(
2
),
leftResult
,
rightResult
);
ret
=
calcItem
(
matcher
.
group
(
2
),
leftResult
,
rightResult
);
}
else
if
(
formula
.
matches
(
REGEX_DOUBLE
))
{
ret
urn
StringHelper
.
toDouble
(
formula
);
ret
=
StringHelper
.
toDouble
(
formula
);
}
else
{
ret
urn
varValues
.
get
(
formula
);
ret
=
varValues
.
get
(
formula
);
}
System
.
out
.
println
(
"公式: "
+
formula
+
" 值"
+
ret
);
return
ret
;
}
private
static
double
calcItem
(
String
flag
,
double
a
,
double
b
)
{
...
...
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