25帧/s * 5.5 =340?
时间: 2024-08-15 09:10:41 浏览: 29
您的计算看起来有点混淆。按照您提供的信息,视频帧率为每秒钟25帧,如果播放时长为5.5秒,正确的计算应该是将帧速率乘以时间,也就是:
25帧/秒 × 5.5秒 = 137.5帧
这是因为帧率是单位时间内显示的画面数量,不是总的帧数。所以5.5秒内不会恰好得到340帧,而是约137.5帧。如果您是在统计连续时间段内的帧数,那确实是340帧,但如果是在说一秒钟内的帧数,那就是137.5帧。
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ls -rt /home/paraview/deploy-script-5.5.4.2/playbook/../tarballs/mysql-*.el7.x86_64.rpm-bundle.tar | tail -n 1 | sed 's/.*\\///g' 这个命令 执行错误
抱歉,我之前的回答有误。在您提供的命令中,`sed`命令中的正则表达式应该使用斜杠(/)而不是双反斜杠(\\)作为分隔符。请尝试以下命令:
```
ls -rt /home/paraview/deploy-script-5.5.4.2/playbook/../tarballs/mysql-*.el7.x86_64.rpm-bundle.tar | tail -n 1 | sed 's/.*\///g'
```
这个命令将提取出文件路径中的文件名。如果您仍然遇到问题,请提供更多关于您的环境和具体需求的细节,我将尽力帮助您解决问题。
#include <iostream> #include <string> using namespace std; template <class T> T SumArray(T* T1,T * T2) { string operator+(string& s1, string &s2) { return s1+s2; } for (T* i = T1; i <= T2; i++) { T S; S
It looks like the code is incomplete and contains errors. The line `string operator+(string& s1, string &s2)` cannot be inside the `SumArray` function. It should be declared outside the function as a global function. Additionally, the code ends abruptly with the variable `S` not being used or returned.
Here's an updated version with those issues fixed:
```
#include <iostream>
#include <string>
using namespace std;
string operator+(string& s1, string &s2) {
return s1 + s2;
}
template <class T>
T SumArray(T* T1, T* T2) {
T sum = 0;
for (T* i = T1; i <= T2; i++) {
sum += *i;
}
return sum;
}
int main() {
int arr1[] = { 1, 2, 3, 4, 5 };
float arr2[] = { 1.1, 2.2, 3.3, 4.4, 5.5 };
string arr3[] = { "hello", "world", "!" };
cout << "Sum of arr1: " << SumArray(arr1, arr1 + 4) << endl;
cout << "Sum of arr2: " << SumArray(arr2, arr2 + 4) << endl;
cout << "Concatenation of arr3: " << SumArray(arr3, arr3 + 2) << endl;
return 0;
}
```
This code defines a global function `operator+` for concatenating two strings, and a template function `SumArray` that takes two pointers and returns the sum of the values between them. It can handle arrays of integers, floats, and strings. The main function demonstrates how to use the `SumArray` function with different types of arrays.