只是想知道,您如何使用结构的全局数组?
例如:
int y = 0;
object objectArray [100];
typedef struct object{
time_t objectTime;
int objectNumber;
} object;
int main(void)
{
while(1)
{
time_t time_now;
time_now = time(NULL);
object x = {time_now, objectNo}
objectArray[y] = x;
y++;
}
}
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这总是会引发“错误:数组类型具有不完整的元素类型”,有人可以告诉我问题和适当的解决方案吗?谢谢
我在/ var/www /目录中保存了几个PHP sripts.我可以从我的浏览器运行它们,但Java无法看到它们.
这是浏览器的输出:

从Java:
DB: Error executing script: get_profile_ids
HTTP/1.1 404 Not Found [Date: Tue, 16 Apr 2013 11:52:40 GMT, Server: Apache/2.2.22 (Ubuntu), Vary: Accept-Encoding, Content-Length: 288, Keep-Alive: timeout=5, max=100, Connection: Keep-Alive, Content-Type: text/html; charset=iso-8859-1]
DB: Result:
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我的Java代码:
public class ServerTest {
public static void main(String [] args) {
callPHPScript("get_print_profile_ids", new ArrayList<NameValuePair>());
}
public static String callPHPScript(String scriptName, List<NameValuePair> parameters) {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://localhost/" + scriptName);
String line = "";
StringBuilder …Run Code Online (Sandbox Code Playgroud) 任何人都可以解释为什么以下代码会给出以下警告以及如何解决它?
warning: assignment makes integer from pointer without a cast [enabled by default]
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这是代码:
int tcp_socket(void)
{
int s;
if ((s = socket(PF_INET, SOCK_STREAM, 0)) == -1) {
_logf(LOG_DEBUG, "LOG %s:%d (%s) - %s", __FILE__, __LINE__, __func__, "Error creating socket");
return -1;
}
return s;
}
int main(int argc, char **argv)
{
int socket;
socket = tcp_socket;
if(socket == -1) {
_logf(LOG_INFO, "LOG %s:%d (%s) - %s", __FILE__, __LINE__, __func__, "Error creating socket, exiting...");
exit(-1);
}
}
Run Code Online (Sandbox Code Playgroud) 我正在尝试将数据发布到应该接受的API List<UpdatePointHistory>.列表的大小是正确的,但对象的属性是空白的.
public class UpdatePointHistory
{
string Tree { get; set; }
string FruitCount { get; set; }
string Observations { get; set; }
int PrivateId { get; set; }
}
public void Post([FromBody]List<UpdatePointHistory> updates)
{
//Do some sort of auth for god sake
Console.WriteLine("test");
}
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我发布的数据:
从API返回的对象:
我使用 swagger 生成的以下代码来建立模拟 api。我在尝试将字符串反序列化为枚举时遇到错误。
代码:
string exampleJson = null;
exampleJson = "{\n \"profileDescription\" : \"profileDescription\",\n \"videoURL\" : \"http://example.com/aeiou\",\n \"imageURL\" : \"http://example.com/aeiou\",\n \"imageURLs\" : [ \"http://example.com/aeiou\", \"http://example.com/aeiou\" ],\n \"name\" : \"name\",\n \"connectedStatus\" : \"connected\",\n \"id\" : \"046b6c7f-0b8a-43b9-b35d-6489e6daee91\",\n \"businessType\" : \"businessType\",\n \"infoGatherReason\" : \"infoGatherReason\"\n}";
var example = exampleJson != null
? JsonConvert.DeserializeObject<Enterprise>(exampleJson)
: default(Enterprise);
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企业.cs:
[DataContract]
public partial class Enterprise : IEquatable<Enterprise>
{
[DataMember(Name="id")]
public Guid? Id { get; set; }
[DataMember(Name="name")]
public string Name { get; set; }
[DataMember(Name="imageURL")]
public string …Run Code Online (Sandbox Code Playgroud) 有没有一种简单的方法可以通过调用返回具有最多行的组df.groupby(..)?
# Return group most rows e.g.
largest_group = df.groupby("community_area").max()
Run Code Online (Sandbox Code Playgroud) 我有以下代码:
from sklearn.metrics import classification_report, confusion_matrix, ConfusionMatrixDisplay
...
confusion_matrix = confusion_matrix(validation_generator.classes, y_pred, normalize='all')
print(confusion_matrix)
display = ConfusionMatrixDisplay(confusion_matrix).plot()
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哪个输出:
[[0.013 0.487]
[0.001 0.499]]
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问题是.plot()执行时没有显示混淆矩阵图。
我在我的 venv 中执行pip freeze > requirements.txt,这些是我的requirements.txt中的包版本
absl-py==0.11.0
astunparse==1.6.3
autopep8==1.5.5
cachetools==4.2.1
certifi==2020.12.5
chardet==4.0.0
cycler==0.10.0
flatbuffers==1.12
gast==0.3.3
google-auth==1.27.1
google-auth-oauthlib==0.4.3
google-pasta==0.2.0
grpcio==1.32.0
h5py==2.10.0
idna==2.10
joblib==1.0.1
Keras-Preprocessing==1.1.2
kiwisolver==1.3.1
Markdown==3.3.4
matplotlib==3.2.0
numpy==1.19.5
oauthlib==3.1.0
opt-einsum==3.3.0
pandas==1.2.3
Pillow==8.1.2
protobuf==3.15.5
pyasn1==0.4.8
pyasn1-modules==0.2.8
pycodestyle==2.6.0
pydot==1.4.2
pyparsing==2.4.7
python-dateutil==2.8.1
pytz==2021.1
requests==2.25.1
requests-oauthlib==1.3.0
rsa==4.7.2
scikit-learn==0.24.1
scipy==1.6.1
seaborn==0.11.1
six==1.15.0
sklearn==0.0
tensorboard==2.4.1
tensorboard-plugin-wit==1.8.0
tensorflow==2.4.1
tensorflow-estimator==2.4.0
termcolor==1.1.0
threadpoolctl==2.1.0 …Run Code Online (Sandbox Code Playgroud)