#!/bin/bash
function tool_menu()
{
echo "****************************************************"
echo "* *"
echo "* calculation tools *"
echo "* *"
echo "****************************************************"
}
function menu_choice()
{
echo "A: Add two num."
echo "B: Minus two num."
echo "C: Multiply two num."
echo "D：Divide two num."
echo "Q: Close this function."
echo "Please input your chiose:"
}
function add_num()
{
echo "please inut your first num:"
read first_num
echo "please inut your second num:"
read second_num
let add=$first_num+$second_num
echo "$first_num+$second_num=$add"
return 0
}
function minus_num()
{
echo "please inut your first num:"
read first_num
echo "please inut your second num:"
read second_num
let minus=$first_num-$second_num
echo "$first_num-$second_num=$minus"
return 0
}
function multiply_num()
{
echo "please inut your first num:"
read first_num
echo "please inut your second num:"
read second_num
let multiply=$first_num*$second_num
echo "$first_num*$second_num=$multiply"
return 0
}
function divide_num()
{
echo "please inut your first num:"
read first_num
echo "please inut your second num:"
read second_num
let divide=$first_num/$second_num
echo "$first_num/$second_num=$divide"
return 0
}
function main()
{
clear
tool_menu
while :
do
menu_choice
read menu_choice
case $menu_choice in
A|a) add_num ;;
B|b) minus_num ;;
C|c) multiply_num ;;
D|d) divide_num ;;
Q|q) break;;
*) echo "Input error,please try agin.";;
esac
done
}
main
exit 0
模板
#!/bin/bash
function tool_menu()
{
echo "****************************************************"
echo "* *"
echo "* calculation tools *"
echo "* *"
echo "****************************************************"
}
function menu_choice()
{
echo "A: Add two num."
echo "B: Minus two num."
echo "C: Multiply two num."
echo "D：Divide two num."
echo "Q: Close this function."
echo "Please input your chiose:"
}
function add_num()
{
echo "add."
}
function minus_num()
{
echo "minus."
}
function multiply_num()
{
echo "multiply."
}
function divide_num()
{
echo "divide."
}
function main()
{
clear 模板
tool_menu
while :
do
menu_choice
read menu_choice
case $menu_choice in
A|a) add_num ;;
B|b) minus_num ;;
C|c) multiply_num ;;
D|d) divide_num ;;
Q|q) break;;
*) echo "Input error,please try agin.";;
esac
done
}
main
exit 0
