Setting ant environment variables in Windows

Suppose the installation path of ant is: "D:/Apache-ant-1.7.1"; JDK installation path is: "D:/Java/jdk1.6.0 _ 13 ".

In Windows 2000/XP, set the ant environment variable: 

My computer> System Properties> advanced> environment variables> System Variables

① Ant_home = D:/Apache-ant-1.7.1

② Java_home = D:/Java/jdk1.6.0 _ 13

③ Path = % ant_home %/bin

P.s .:

the variable name and variable value of Windows environment variables are case-insensitive. for example, path indicates the same variable name. In addition, if a variable name already exists, the variable with the same name will overwrite the variable value of the original variable, be cautious!