大约有 23,000 项符合查询结果（耗时：0.0348秒） [XML]
ruby operator “=~” [duplicate]
...
The =~ operator matches the regular expression against a string, and it returns either the offset of the match from the string if it is found, otherwise nil.
/mi/ =~ "hi mike" # => 3
"hi mike" =~ /mi/ # => 3
"mike" =~ /ruby/ # => nil
You can place the string/regex o...
How to remove a key from HashMap while iterating over it? [duplicate]
I am having HashMap called testMap which contains String, String .
3 Answers
3
...
Integer.valueOf() vs. Integer.parseInt() [duplicate]
...bject. Consider from the Integer.class source:
public static int parseInt(String s) throws NumberFormatException {
return parseInt(s, 10);
}
public static Integer valueOf(String s, int radix) throws NumberFormatException {
return Integer.valueOf(parseInt(s, radix));
}
public static Intege...
Android - Round to 2 decimal places [duplicate]
...someone show me how to round double, to get value that I can display as a
String and ALWAYS have 2 decimal places?
2 Answe...
How to transform array to comma separated words string? [duplicate]
...
You're looking for implode()
$string = implode(",", $array);
share
|
improve this answer
|
follow
|
...
Using a string variable as a variable name [duplicate]
I have a variable with a string assigned to it and I want to define a new variable based on that string.
3 Answers
...
How to convert a date string to different format [duplicate]
I need to convert date string "2013-1-25" to string "1/25/13" in python.
I looked at the datetime.strptime but still can't find a way for this.
...
SQL: How to perform string does not equal
...here tester <> 'username' or tester is null
If you are looking for strings that do not contain the word "username" as a substring, then like can be used:
where tester not like '%username%'
share
|
...
Convert string to variable name in python [duplicate]
I have any string. like 'buffalo',
3 Answers
3
...
无法将类型“System.Collections.Generic.List<string>”隐式转换为...
List<string> list = new List<string>();
.........
ArrayList al = new ArrayList();
al.AddRange(list);复制代码如果单纯转换为对象数组，直接调用 list.ToArray() 方法。