原文詳情轉(zhuǎn)載自
http://www.cnblogs.com/wfwenchao/p/3991060.html?utm_source=tuicool&utm_medium=referral

運行app，進入斷點模式后，在（lldb）后輸入

expr username = @"username"
expr password = @"badpassword"

控制臺會返回以下信息

(NSString *) $0 = 0x3d3504c4 @"username"
(NSString *) $1 = 0x1d18ef60 @"badpassword"

現(xiàn)在跳出斷點，執(zhí)行斷點之后的兩條輸出語句，控制臺會有以下輸出

(0x1c59aae0) A line for the breakpoint
(0x1c59aae0) Username and Password after: username:badpassword