
CODE: [Copy to clipboard]@echo off
:begin
cls
set num=&set result=
set /p num=计算2的n次方,请输入一个整数:
if %num%==0 (echo 1&pause&goto begin)
set /a num-=1
set /a result=2 "<<" %num%
echo %result%
pause
goto begin
exit/b0
CODE: [Copy to clipboard]@echo off
set/p n=请输入2的几次方:
set/a num=1^<^<n
echo %num%
pause
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