params=$*for param in ${params}do    name=$(echo $param | cut -d "=" -f 1)    value=$(echo $param | cut -d "=" -f 2)    if [[ "$name" = "run_type" ]]; then        run_type=$value    elif [[ "$name" = "fix_start_date" ]]; then        fix_start_date=$value    elif [[ "$name" = "fix_end_date" ]]; then        fix_end_date=$value    elif [[ "$name" = "mysql_env" ]]; then        mysql_env=$value    elif [[ "$name" = "global_start_date" ]]; then        global_start_date=$value    fidone

$*获取所有参数

for in 可以遍历默认以空格分割的字符串

用cut命令解析每个参数