#include<chrono> std::chrono::secondssec(10);// 10 秒 std::chrono::millisecondsms(100);// 100 毫秒 time_point:表示一个时间点,通常与特定时钟(如系统时钟)关联。 cpp 复制代码 auto now = std::chrono::system_clock::now();// 获取当前时间点 system_clock:表示系统时钟。 cpp 复制代码 auto ...
structtimeb{time_ttime;// secondsunsignedshortmillitm;// milliseconds};与之配对的是一个名叫 intf...
structtimeb{time_ttime;// secondsunsignedshortmillitm;// milliseconds};与之配对的是一个名叫 intf...
time_t time2 = time(nullptr); double time_diff = difftime(time2, time1); cout <<'time1: '<< time1 << endl; cout <<'time2: '<< time2 << endl; cout <<'time_diff: '<< time_diff <<'s'<< endl; 其输出如下,可以看到这正是time1和time2两个整数相减的结果: time1: 157743440...
代码示例1 #includelong long current_timestamp() { struct timeval te; gettimeofday(&te, NULL); // get current time long long milliseconds = te.tv_sec*1000LL + te.tv_usec/1000; // calculate milliseconds // printf("milliseconds: %lld\n", milliseconds); return milliseconds; }...
在标准C/C++中,我们可通过tm结构来获得日期和时间,tm结构在time.h中的定义如下: #ifndef _TM_DEFINED struct tm { int tm_sec; /* 秒– 取值区间为[0,59] */ int tm_min; /* 分 - 取值区间为[0,59] */ int tm_hour; /* 时 - 取值区间为[0,23] */ ...
printf("Current time in milliseconds: %ld\n", milliseconds); return 0; } ``` 在这个例子中,我们首先定义了一个timeval结构体变量tv,然后调用gettimeofday()函数来获取当前时间并存储在tv中。接着,我们通过tv中的秒数和微秒数计算出当前时间的毫秒数,并通过printf函数输出。
#include<time.h> #include<math.h> #include<conio.h> #include<stdio.h> #define PI 3.141592653589793 //画时钟盘 void draw(); //画表针 void drawHand(int hour, int minute, int second, int Milliseconds); //显示年月日 星期 void showDate(int year, int month, int date, int day); ...
The millisecond is a multiple of the second, which is the SI base unit for time. In the metric system, "milli" is the prefix for thousandths, or 10-3. Milliseconds can be abbreviated as ms; for example, 1 millisecond can be written as 1 ms. Learn more about milliseconds. What Is...
#include<iostream>#include<chrono>intmain(){// 获取当前时间点std::chrono::time_point<std::chrono::system_clock>now=std::chrono::system_clock::now();// 将时间点转换为毫秒精度autostart=std::chrono::time_point_cast<std::chrono::milliseconds>(now);// 获取毫秒数automilliseconds=start.time_si...