大约有 13,700 项符合查询结果(耗时:0.0345秒) [XML]
Split code over multiple lines in an R script
...two step solution.
1) Bring the text string in across multiple lines
long_string <- "this
is
a
long
string
with
whitespace"
2) R will introduce a bunch of \n characters. Strip those out with strwrap(), which destroys whitespace, per the documentation:
strwrap(long_string, width=10000, sim...
Using curl POST with variables defined in bash script functions
...eding the post data on curl's invocation line as in your attempt:
generate_post_data()
{
cat <<EOF
{
"account": {
"email": "$email",
"screenName": "$screenName",
"type": "$theType",
"passwordSettings": {
"password": "$password",
"passwordConfirm": "$password"
...
Difference between variable declaration syntaxes in Javascript (including global variables)?
...t a direct reference to the global object.
– Sherlock_HJ
Apr 2 '16 at 21:08
@Sherlock_HJ: I've added "on browsers;" th...
Is it possible to modify variable in python that is in outer, but not global, scope?
...ld a temporary scope. It's like the mutable but a bit prettier.
def outer_fn():
class FnScope:
b = 5
c = 6
def inner_fn():
FnScope.b += 1
FnScope.c += FnScope.b
inner_fn()
inner_fn()
inner_fn()
This yields the following interactive output:
>>> outer...
Entity Framework Code First - two Foreign Keys from same table
...delete the Team Then it is throwing error. A relationship from the 'Team_HomeMatches' AssociationSet is in the 'Deleted' state. Given multiplicity constraints, a corresponding 'Team_HomeMatches_Target' must also in the 'Deleted' state.
– Rupesh Kumar Tiwari
...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...载:
de.ullisroboterseite.ursai2pahomqtt.aix
完整示例项目:
mqtt_demo.aia
MQTT协议深度解析
1. 协议架构与通信模式
MQTT采用客户端-服务器架构,基于发布/订阅(Publish/Subscribe)模式实现消息传递:
grap...
How to read from standard input in the console?
...lock
reader := bufio.NewReader(os.Stdin)
fmt.Print("Enter text: ")
text, _ := reader.ReadString('\n')
fmt.Println(text)
As it works on my machine. However, for the next block you need a pointer to the variables you're assigning the input to. Try replacing fmt.Scanln(text2) with fmt.Scanln(&t...
What are bitwise shift (bit-shift) operators and how do they work?
...d |
To get at the green value you would do this:
#define GREEN_MASK 0x7E0
#define GREEN_OFFSET 5
// Read green
uint16_t green = (pixel & GREEN_MASK) >> GREEN_OFFSET;
Explanation
In order to obtain the value of green ONLY, which starts at offset 5 and ends at 10 (i.e. ...
What are the drawbacks of Stackless Python? [closed]
...to find an ancient mailing list conversation at gnosis.cx/download/charming_python_10_outtakes.html which gives alot more insight to the situation.
– Arafangion
Feb 26 '09 at 4:48
...
How to find first element of array matching a boolean condition in JavaScript?
... its find and indexOf functions to get exactly what you want:
var index = _.indexOf(your_array, _.find(your_array, function (d) {
return d === true;
}));
Documentation:
http://underscorejs.org/#find
http://underscorejs.org/#indexOf
...
