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How would you count occurrences of a string (actually a char) within a string?
...m doing something where I realised I wanted to count how many / s I could find in a string, and then it struck me, that there were several ways to do it, but couldn't decide on what the best (or easiest) was.
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How to generate a number of most distinctive colors in R?
I am plotting a categorical dataset and want to use distinctive colors to represent different categories. Given a number n , how can I get n number of MOST distinctive colors in R? Thanks.
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How can I escape a double quote inside double quotes?
...is \x22text\x22'
$ echo "$a"
This is "text"
If the variable is already set by another program, you can still apply double/single quotes with sed or similar tools.
Example:
$ b="Just another text here"
$ echo "$b"
Just another text here
$ sed 's/text/"'\0'"/' <<<"$b" #\0 is a speci...
Python csv string to array
Anyone know of a simple library or function to parse a csv encoded string and turn it into an array or dictionary?
10 Answe...
LoadRunner中参数化技术详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，在VuGen中运行脚本时，该值为-1.
8
DataFile/Table
可以在属性设置中编辑文件，添加内容，也可以从数据库中提取数据。
9
UseDefinedFunction
从dll的简单函数中获取信息替代参数
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Start thread with member function
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Print current call stack from a method in Python code
...import pdb
Then in the code where you want to see what is happening
pdb.set_trace()
and you get dropped into a prompt
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How to write a bash script that takes optional input arguments?
...l - 3.5.3 Shell Parameter Expansion [emphasis mine]:
If parameter is unset or null, the expansion of word is substituted. Otherwise, the value of parameter is substituted.
If you only want to substitute a default value if the parameter is unset (but not if it's null, e.g. not if it's an empty ...
How to send a simple string between two programs using pipes?
...ng on the net, but there are hardly any resources. A small example would suffice.
7 Answers
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How to print a linebreak in a python function?
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