LLDB调试命令

LLDB Expression for Code Injection in Xcode

Link: 

https://www.invasivecode.com/weblog/lldb-expression-for-code-injection-in-xcode

expr -l objc++ -O -- [(id)0x7fe619e37fa0 setBackgroundColor: [UIColor redColor]]

expr CGRect rect; rect.origin.x=0; rect.origin.y=0; rect.size.width=0; rect.size.height=812; (void)[((UIView*)0x12e4ef3b0) setFrame:rect];