19 lines
396 B
C
19 lines
396 B
C
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#include <stdio.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <time.h>
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int main(int argc, char const *argv[])
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{
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time_t at = time(NULL);
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char buf[32] = "";
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sprintf(buf, "%d 运行中", getpid());
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write(1, buf, sizeof(buf));
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sleep(2);
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time_t bt = time(NULL);
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printf("\n%d 结束\n", getpid());
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printf("运行时间：%ld 秒\n", bt - at);
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return 0;
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}
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