大约有 43,100 项符合查询结果（耗时：0.0302秒） [XML]
逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...
...了一下，差不多几十页的样子，发现其中有六个函数phase_1……phase_6，基本上也就可以确定就是这六个关卡了。
===============phase_1===============
知识点：string，函数调用，栈
用了差不多一个星期断断续续地寻找感觉的phase_1，最...
SQL: How to properly check if a record exists
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It's better to use either of the following:
-- Method 1.
SELECT 1
FROM table_name
WHERE unique_key = value;
-- Method 2.
SELECT COUNT(1)
FROM table_name
WHERE unique_key = value;
The first alternative should give you no result or one result, the second count should be zero or...
How to convert 1 to true or 0 to false upon model fetch
...th true or false into a boolean/tinyint field in the database, which uses 1 or 0 .
4 Answers
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Highlight the difference between two strings in PHP
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13 Answers
13
Active
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What is the ultimate postal code and zip regex?
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132
There is none.
Postal/zip codes around the world don't follow a common pattern. In some count...
Remap values in pandas column with a dict
I have a dictionary which looks like this: di = {1: "A", 2: "B"}
10 Answers
10
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Difference between Divide and Conquer Algo and Dynamic Programming
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158
Divide and Conquer
Divide and Conquer works by dividing the problem into sub-problems, conque...
Adding new column to existing DataFrame in Python pandas
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1091
Use the original df1 indexes to create the series:
df1['e'] = pd.Series(np.random.randn(sLen...
Checking for the correct number of arguments
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218
#!/bin/sh
if [ "$#" -ne 1 ] || ! [ -d "$1" ]; then
echo "Usage: $0 DIRECTORY" >&2
ex...