写法 1
#!/bin/bash function echo_color(){ if [ $1 == "green" ]; then echo -e "\033[32;40m$2\033[0m" elif [ $1 == "red" ]; then echo -e "\033[31;40m$2\033[0m" fi } echo_color green "我是绿色" echo_color red "我是红色"
写法 2
也可以在前面不写function，也可以定义函数
#!/bin/bash echo_color(){ case $1 in green) echo -e "\033[32;40m$2\033[0m" ;; red) echo -e "\033[31;40m$2\033[0m" ;; *) echo "Example: echo_color red string" esac } echo_color green "我是绿色"
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