对于在批处理文件中进行值操作的循环

Question

FOR /F "tokens=1-7 delims=," %%G IN (C:\Users\asian\Desktop\FOR_LOOP\1sv1.csV) do echo %%G,%%H,%%I >> 1.csv

输出：

20030701,1001,456.000000 
20030701,1002,459.000000 
20030701,1003,450.000000 
20030701,1004,456.000000 
20030701,1005,459.000000 

我的查询是我要为%%I variable(456.000000)划分值 输出应该是这样的：

20030701,1001,228.000000 
20030701,1002,229.5.000000 
20030701,1003,225.000000 
20030701,1004,228.000000 
20030701,1005,229.5.000000 

Answer 1

setlocal enabledelayedexpansion
(FOR /F "tokens=1-7 delims=," %%G IN (C:\Users\asian\Desktop\FOR_LOOP\1sv1.csV) do (
    set /a "i=%%I*5"
    echo %%G,%%H,!i:~0,-1!.!i:~-1!00000
)) > 1.csv
endlocal

批处理算术没有小数。因此，为了处理它，将该值乘以10（以获得一个附加位置）并除以2（来自OP）。然后，该值被分割为最后一位是第一个小数。