下载
下载地址：
http://stevenygard.com/projects/class-dump
下载class-dump-3.5.dmg后双击打开
Paste_Image.png
移动到/usr/bin下
这时你会发现不论是复制还是移动都不行，如下：
MacBook-Air:/ Mark$ sudo cp class-dump /usr/bin
Password:
cp: /usr/bin/class-dump: Operation not permitted
MacBook-Air:/ Mark$ sudo mv class-dump /usr/bin
mv: rename class-dump to /usr/bin/class-dump: Operation not permitted
解决方法如下：
1.重启mac
2.在启动时按下cmd+r直到出现苹果logo
3.这时有可能要你选择语言
4.选择工具(Utilities)打开终端(terminal)执行如下命令
csrutil disable
reboot
4.在次启动后重新执行移动命令～OK
更改权限
chmod 777 /usr/bin/class-bump
测试
执行class-bump
isoftstonedeMacBook-Pro:~ isoftstone$ cd /usr/bin/
isoftstonedeMacBook-Pro:bin isoftstone$ class-dump
class-dump 3.5 (64 bit)
Usage: class-dump [options] <mach-o-file>
where options are:
-a show instance variable offsets
-A show implementation addresses
--arch <arch> choose a specific architecture from a universal binary (ppc, ppc64, i386, x86_64, armv6, armv7, armv7s, arm64)
-C <regex> only display classes matching regular expression
-f <str> find string in method name
-H generate header files in current directory, or directory specified with -o
-I sort classes, categories, and protocols by inheritance (overrides -s)
-o <dir> output directory used for -H
-r recursively expand frameworks and fixed VM shared libraries
-s sort classes and categories by name
-S sort methods by name
-t suppress header in output, for testing
--list-arches list the arches in the file, then exit
--sdk-ios specify iOS SDK version (will look in /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS<version>.sdk
--sdk-mac specify Mac OS X version (will look in /Developer/SDKs/MacOSX<version>.sdk
--sdk-root specify the full SDK root path (or use --sdk-ios/--sdk-mac for a shortcut)
isoftstonedeMacBook-Pro:bin isoftstone$
