更新 README.md

README.md

@@ -1469,7 +1469,10 @@ test.sh: option requires an argument -- a
 Invalid option: -
 [hello@Git shell]$ more test.sh
 #!/bin/bash
-while getopts "a:" opt; do
+
+OPTIND=1 # 重置 OPTIND 以确保从第一个参数开始解析
+while getopts "a:" opt;
+do
   case $opt in
     a)
       echo "this is -a the arg is ! $OPTARG"
@@ -1489,7 +1492,10 @@ this is -a the arg is ! hello
 [hello@Git shell]$ bash test.sh -a
 [hello@Git shell]$ more test.sh
 #!/bin/bash
-while getopts ":a:" opt; do
+
+OPTIND=1 # 重置 OPTIND 以确保从第一个参数开始解析
+while getopts ":a:" opt;
+do
   case $opt in
     a)
       echo "this is -a the arg is ! $OPTARG"
@@ -1541,6 +1547,8 @@ ROOTFS_PKG=rootfs
 USRFS_PKG=userfs
 ABOOT_PKG=bootloader
 SOPEN_PKG=sopen
+
+OPTIND=1 # 重置 OPTIND 以确保从第一个参数开始解析
 while getopts "krubsh" opt;
 do
     case $opt in