How to add conditions with commands in Batch file in command prompt?

I am trying to execute a code in which a list of options are posted and when the corresponding number to the operation is pressed the command is executed and afterwards it asks again which command to perform. I have written the following code but it just runs all the commands automatically and stops automatically

@echo off
color B
echo Test File
echo Press any key to perform any of the following operations

echo 1) System Information 
echo 2) Ping

SET var1="1"
SET var2="2"

if %var1%=="1" (
    pause
    systeminfo
    )

if %var2%=="2" (
   pause
    ping www.google.com
    )

Any help would be appreciated. Thanks in advance.