大约有 3,300 项符合查询结果（耗时：0.0161秒） [XML]
How do I check if a string contains another string in Swift?
...s in Swift 2 and 3, so you can use this more concise code1:
let string = "hello Swift"
if string.contains("Swift") {
print("exists")
}
Swift 3.0+
var string = "hello Swift"
if string.range(of:"Swift") != nil {
print("exists")
}
// alternative: not case sensitive
if string.lowercased()...
Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Lua是类C的，所以，他是大小写字符敏感的。
下面是Lua的Hello World。注意：Lua脚本的语句的分号是可选的，这个和GO语言很类似。
1
print("Hello World")
你可以像python一样，在命令行上运行lua命令后...
Case insensitive replace
...
import re
pattern = re.compile("hello", re.IGNORECASE)
pattern.sub("bye", "hello HeLLo HELLO")
# 'bye bye bye'
share
|
improve this answer
|
...
How do I trim whitespace from a string?
...f the second, then strings already have a .strip() method:
>>> ' Hello '.strip()
'Hello'
>>> ' Hello'.strip()
'Hello'
>>> 'Bob has a cat'.strip()
'Bob has a cat'
>>> ' Hello '.strip() # ALL consecutive spaces at both ends removed
'Hello'
If you need only t...
Escape double quotes in parameter
...ly adjacent to text not wrapped with double-quotes join into one parameter:hello"to the entire"world acts as one parameter: helloto the entireworld.
Note: The previous rule does NOT imply that two double-quoted groups can appear directly adjacent to one another.
Any double-quote directly following ...
“Variable” variables in Javascript?
...te a gloabls array for you. For example, instead of declaring the variable hello in the global scope like this:
var hello = 'hello world';
let's encapsulate it inside an object. We'll call that object vv (variable variables):
var vv = {
'hello': 'hello world',
//Other variable variables ...
Select element by exact match of its content
...ily use filter:
$("p").filter(function() {
return $(this).text() === "hello";
}).css("font-weight", "bold");
It's not a selector, but it does the job. :-)
If you want to handle whitespace before or after the "hello", you might throw a $.trim in there:
return $.trim($(this).text()) === "hell...
How to append output to the end of a text file
...f file_to_append_to does not exist, it will be created.
Example:
$ echo "hello" > file
$ echo "world" >> file
$ cat file
hello
world
share
|
improve this answer
|
...
Calling a function from a string in C#
... doing a dynamic method invocation:
Suppose that you have a method called hello in a the actual instance (this):
string methodName = "hello";
//Get the method information using the method info class
MethodInfo mi = this.GetType().GetMethod(methodName);
//Invoke the method
// (null- no parameter...
Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...Lua是类C的，所以，他是大小写字符敏感的。下面是Lua的Hello World。注意：Lua脚本的语句的分号是可选的，这个和GO语言很类似。print("Hello World")复制代码
你可以像python一样，在命令行上运行lua命令后进入lua的shell中执行语...