复杂的字符截取！谁提供了好方法就送分！

Question

String str="$v5(cas:ProvisionForImpairmentOfNotesReceivable,end)
 = 
$v1(cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start)
 - $v2(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse)
 - $v3(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff)
 + 
$v4(cas:ProvisionForImpairmentOfNotesReceivable)"  我想把上面这个字符串截取成 $v5=$v1-$v2-$v3+$v4
  并且$v5括号对应的值能够根据v5能找到 $v2和$v3和$v1同样！

Answer 1

 
 String str="$v5(cas:ProvisionForImpairmentOfNotesReceivable,end)="$v1(cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start)-$v2(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse)-$v3(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff)+$v4(cas:ProvisionForImpairmentOfNotesReceivable)"; 这是一个字符串 是个公式 我现在想把这个字符进行截取 成 $v5=$v1-$v2-$v3+$v4 
  而括号里的值是 $v5,$v1,$v2,$v3,$v4值 怎么把上面复杂的字符串分解出来 公式是公式 值是值

Answer 2

String str="$v5(cas:ProvisionForImpairmentOfNotesReceivable,end)="$v1(cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start)-$v2(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse)-$v3(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff)+$v4(cas:ProvisionForImpairmentOfNotesReceivable)";
   你仔细看我的字符串 应该还是好理解的

Answer 3

  str.replaceAll("\\([^\\)]*\\)", ""); 

Answer 4

import java.util.regex.Matcher;
import java.util.regex.Pattern;public class Test {
    public static void main(String[] args) {
        String str = "$v5(cas:ProvisionForImpairmentOfNotesReceivable,end)=$v1(cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start)-$v2(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse)-$v3(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff)+$v4(cas:ProvisionForImpairmentOfNotesReceivable)";
        String expression = str.replaceAll("\\(.*?\\)", "");
        System.out.println(expression);
        
        Pattern pattern = Pattern.compile("(\\$v\\d+)\\((.+?)\\)");
        Matcher matcher = pattern.matcher(str);
        while (matcher.find()) {
            System.out.printf("%s : %s\n", matcher.group(1), matcher.group(2));
        }
    }
}

Answer 5

输出
$v5=$v1-$v2-$v3+$v4
$v5 : cas:ProvisionForImpairmentOfNotesReceivable,end
$v1 : cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start
$v2 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse
$v3 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff
$v4 : cas:ProvisionForImpairmentOfNotesReceivable

Answer 6

  $v5=$v1-$v2-$v3+$v4
$v5 : cas:ProvisionForImpairmentOfNotesReceivable,end
=$v1 : cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start
-$v2 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse
-$v3 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff
+$v4 : cas:ProvisionForImpairmentOfNotesReceivable  可以输出这样的值嘛？

Answer 7

import java.util.regex.Matcher;
import java.util.regex.Pattern;public class Test {
    public static void main(String[] args) {
        String str = "$v5(cas:ProvisionForImpairmentOfNotesReceivable,end)=$v1(cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start)-$v2(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse)-$v3(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff)+$v4(cas:ProvisionForImpairmentOfNotesReceivable)";
        String expression = str.replaceAll("\\(.*?\\)", "");
        System.out.println(expression);        Pattern pattern = Pattern.compile("([\\-\\+\\*/=]?\\$v\\d+)\\((.+?)\\)");
        Matcher matcher = pattern.matcher(str);
        while (matcher.find()) {
            System.out.printf("%s : %s\n", matcher.group(1), matcher.group(2));
        }
    }
}
输出
$v5=$v1-$v2-$v3+$v4
$v5 : cas:ProvisionForImpairmentOfNotesReceivable,end
=$v1 : cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start
-$v2 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse
-$v3 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff
+$v4 : cas:ProvisionForImpairmentOfNotesReceivable

Answer 8

import java.util.regex.Matcher;
import java.util.regex.Pattern;public class Test {
    public static void main(String[] args) {
        String str = "$v5(cas:ProvisionForImpairmentOfNotesReceivable,end)=$v1(cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start)-$v2(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse)-$v3(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff)+$v4(cas:ProvisionForImpairmentOfNotesReceivable)";
        String expression = str.replaceAll("\\(.*?\\)", "");
        System.out.println(expression);        Pattern pattern = Pattern.compile("([\\-\\+\\*/=]?)(\\$v\\d+)\\((.+?)\\)");
        Matcher matcher = pattern.matcher(str);
        while (matcher.find()) {
            System.out.printf("%1s %s : %s\n", matcher.group(1), matcher.group(2), matcher.group(3));
        }
    }
}输出
$v5=$v1-$v2-$v3+$v4
  $v5 : cas:ProvisionForImpairmentOfNotesReceivable,end
= $v1 : cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start
- $v2 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse
- $v3 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff
+ $v4 : cas:ProvisionForImpairmentOfNotesReceivable

Answer 9

遍历  
遇见左括号（cas: 就开始记录  遇见右括号就停止记录
把字符串放到集合中
最后把记录下来的字符串集合 遍历从原字符串中替换掉

Answer 10

用正则  把 $XX :( cas:XXXX)  替换为 $XX 

Answer 11

System.out.println(str.replaceAll("\\(", " : ").replaceAll("\\)", "\n "));

Answer 12

System.out.println(str.replaceAll("\\(", " : ").replaceAll("\\)", "\n ").replaceAll("\\=", "= "));

Answer 13

我还以为 我的效率低呢 
看看了看时间  还是正则类 效率低 
以后还是 少用 正则类判断[code=java] public static void main(String[] args) {
String str = "$v5(cas:ProvisionForImpairmentOfNotesReceivable,end)=$v1(cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start)-$v2(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse)-$v3(cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff)+$v4(cas:ProvisionForImpairmentOfNotesReceivable)";
//String s[] =str.split("\\=|\\+|\\-");
// System.out.println(str.replaceAll("\\([^\\)]*\\)", "")); 

long l3=System.currentTimeMillis();
System.out.println("  "+(str.replaceAll("\\(", " : ").replaceAll("\\)", "\n").replaceAll("\\=", "= ").replaceAll("\\+", "+ ").replaceAll("\\-", "- ")));
long l4=System.currentTimeMillis();
System.out.println(l4-l3);

System.out.println();
long l1=System.currentTimeMillis();
Pattern pattern = Pattern.compile("([\\-\\+\\*/=]?)(\\$v\\d+)\\((.+?)\\)");
        Matcher matcher = pattern.matcher(str);
        while (matcher.find()) {
            System.out.printf("%1s %s : %s\n", matcher.group(1), matcher.group(2), matcher.group(3));
        }
        long l2=System.currentTimeMillis();
        System.out.println(l2-l1);
}[code]  $v5 : cas:ProvisionForImpairmentOfNotesReceivable,end
= $v1 : cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start
- $v2 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse
- $v3 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff
+ $v4 : cas:ProvisionForImpairmentOfNotesReceivable0  $v5 : cas:ProvisionForImpairmentOfNotesReceivable,end
= $v1 : cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start
- $v2 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse
- $v3 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff
+ $v4 : cas:ProvisionForImpairmentOfNotesReceivable
31反过来：  $v5 : cas:ProvisionForImpairmentOfNotesReceivable,end
= $v1 : cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start
- $v2 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse
- $v3 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff
+ $v4 : cas:ProvisionForImpairmentOfNotesReceivable
47  $v5 : cas:ProvisionForImpairmentOfNotesReceivable,end
= $v1 : cas:ProvisionForImpairmentOfNotesReceivableIncreaseInCurrentPeriod,start
- $v2 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodReverse
- $v3 : cas:ProvisionForImpairmentOfNotesReceivableDecreaseInCurrentPeriodWriteOff
+ $v4 : cas:ProvisionForImpairmentOfNotesReceivable0