【本节课知识点画板】前奏知识点1、回车和换行回⻋概念换⾏概念⽼式打字机的例⼦
&&


什么现象?
代码语言:javascript代码运行次数:0运行复制<code class="javascript">#include <stdio.h>int main(){ printf("hello bite!
"); sleep(3); return 0;}</code>什么现象??
代码语言:javascript代码运行次数:0运行复制<code class="javascript">#include <stdio.h>int main(){ printf("hello bite!"); sleep(3); return 0;}</code>什么现象???
代码语言:javascript代码运行次数:0运行复制<code class="javascript">#include <stdio.h>int main(){ printf("hello bite!"); fflush(stdout); sleep(3); return 0;}</code><code class="javascript">#include<stdio.h>#include<unistd.h>int main(){ int cnt = 10; while(cnt >= 0) { printf("%-2d
",cnt); fflush(stdout); sleep(1); cnt--; } printf("
"); return 0;}</code><code class="javascript">#pragma once#include<stdio.h>void FlushProcess(); </code>
<code class="javascript">define SIZE 101 #define STYLE '#' //v2:根据进度,动态刷新进度条 void FlushProcess(double total,double current) { const char* lable = "|/-\"; int len = strlen(lable); static index = 0; char buffer[SIZE]; memset(buffer,0,sizeof(buffer)); double rate = current*100/total; int num = (int)rate; int i = 0; for(;i < num;i++) { buffer[i] = STYLE; } printf("[%-100s][%.1lf%%][%c]
",buffer,rate,lable[index++]); fflush(stdout); index %= len; if(num >= 100) { printf("
"); } }//v1:展示进度条的基本功能 void process() { int rate = 0; char buffer[SIZE]; memset(buffer,0 , sizeof(buffer)); const char* lable="|/-\"; int len = strlen(lable); while(rate <= 100) { printf("[%-100s][%d%%][%c]
",buffer,rate,lable[rate%len]); fflush(stdout); buffer[rate] = STYLE; rate++; usleep(50000); } printf("
"); }</code><code class="javascript">#include"process.h" #include<stdlib.h> #include<time.h> double total = 1024.0; double speed[] = {1.0,0.5,0.2,0.1,0.01,0.02}; void download() { double current = 0.0; srand(time(NULL)); while(current <= total) { FlushProcess(total,current); if(current == total) break; //下载代码 int random = rand()%6; usleep(5000); current += speed[random]; if(current >= total) { current = total; } } } int main() { download(); return 0; }</code>以上就是【Linux系统】第六节—简易倒计时+进度条(详解)的详细内容,更多请关注php中文网其它相关文章!
每个人都需要一台速度更快、更稳定的 PC。随着时间的推移,垃圾文件、旧注册表数据和不必要的后台进程会占用资源并降低性能。幸运的是,许多工具可以让 Windows 保持平稳运行。
Copyright 2014-2025 https://www.php.cn/ All Rights Reserved | php.cn | 湘ICP备2023035733号