shichao-an

• noob (n.) 新手 (a person who is inexperienced in a particular sphere or activity, especially computing or the use of the Internet.)
• calamitous (adj.) 灾难性的
• swamp (vt.) 淹没; 使…应接不暇; 使…人满为患
• layman/layperson (n.) (non-expert) 外行
• necessitate (vt.) 使成为必要
• warrant (vt.) 证明…正当 (justify); 使成为必要 (necessitate); 为...作担保
• instrumental (adj.) to be instrumental in [something]/doing [something] 对某事物/对做某事起重要作用 (to have important role)
• stagnant (adj.) (sluggish) 停滞的; 不景气的
• reap (vt.) 获得
• weigh (vt.) 权衡; 衡量 (vt.) 有影响 (have influence) (exp. to weigh heavily/very little with [somebody] 对某人影响很大/很小)

shichao-an

class Base(object):
    def __repr__(self):
        try:
            u = self.__str__()
        except (UnicodeEncodeError, UnicodeDecodeError):
            u = '[Bad Unicode data]'
        repr_type = type(u)
        return repr_type('<%s: %s>' % (self.__class__.__name__, u))

    def __str__(self):

shichao-an

2016-01-28 10:41:06.926 Vim[33161:8900878] *** -[NSMachPort handlePortMessage:]: dropping incoming DO message because the connection is invalid
2016-01-28 10:41:06.932 Vim[33161:8900878] *** Terminating app due to uncaught exception 'NSInvalidReceivePortException', reason: 'connection is invalid'
*** First throw call stack:
(
	0   CoreFoundation                      0x00007fff95bddae2 __exceptionPreprocess + 178
	1   libobjc.A.dylib                     0x00007fff8d67cf7e objc_exception_throw + 48
	2   CoreFoundation                      0x00007fff95bdd98d +[NSException raise:format:] + 205
	3   Foundation                          0x00007fff86883b35 -[NSConnection sendInvocation:internal:] + 239
	4   CoreFoundation                      0x00007fff95b19412 ___forwarding___ + 514
	5   CoreFoundation                      0x00007fff95b19188 _CF_forwarding_prep_0 + 120

shichao-an

• retroactive: 有追溯效力的; 追加的 example: a retroactive notice
• afaik, AFAIK: as far as I know
• recap (v.) 总结
• drill down (v.) 钻取数据
• to this end (v.) to achieve the previously specified goal.
• predate (v.) 早于
• roll out (v.) 推出; 展出; introduce; to initiate or produce for the first time;
• verbiage (n.) 连篇累牍
• surface (vi.) 露出水面; 出现; 重新出现
• grinding (adj.) 刺耳的; 完全的; 难于忍受的

shichao-an

cpp -dM /dev/null

shichao-an

# If .profile already exists, execute it.
if [ -f "$HOME/.profile" ]; then
    . "$HOME/.profile"
else
    # Otherwise, copy .profle from /etc/skel
    if [ -f "/etc/skel/.profile" ]; then
        cp /etc/skel/.profile "$HOME"
    fi
    # Also check if .bashrc exists and otherwise copy it from /etc/skel
    if [ ! -f "$HOME/.bashrc" ]; then

shichao-an

#!/usr/bin/env bash
# After disconnecting from the iPhone Hotspot, run this command

OLD_DEFAULT_ROUTE="10.0.1.1"

# Turn off WiFi
networksetup -setairportpower en0 off

# Flush all routes
sudo route flush

shichao-an

montage *.png -tile 2x4 -geometry +4+4 output.png

shichao-an

1. LeetCode: Word Ladder 

2. memory management 
  what's page fault? what would cause page fault? 

  char *a = 0x123456; 
  is the memory address pointing physical location? 
  kernel, software or hardware doing the memory translation? 

  what would cause page fault to load data from harddrive (not swap)? ( 

shichao-an

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