源码编程器实现进度条的方法有多种,以下是几种常见的方法:
方法一:使用`time`和`sys`模块
```python
import sys
import time
def a1():
for i in range(1, 101):
print('\r', end="")
print("进度: {}/{}".format(i, 100), end="")
sys.stdout.flush()
time.sleep(0.05)
if __name__ == "__main__":
a1()
```
方法二:使用`time.perf_counter`和格式化输出
```python
import time
def a2():
scale = 50
start = time.perf_counter()
for i in range(scale + 1):
a = "*" * i
b = scale - i
c = (i / scale) * 100
dur = time.perf_counter() - start
print("\r{:^3.0f}%".format(c), end="")
time.sleep(0.1)
if __name__ == "__main__":
a2()
```
方法三:使用第三方库`tqdm`
```python
import time
from tqdm import tqdm
def a3():
time.sleep(5)
for i in tqdm(range(1, 101)):
time.sleep(0.1)
time.sleep(1)
if __name__ == "__main__":
a3()
```
方法四:使用C语言实现
```c
include include void displayProgress(int progress) { int k = 0; for (k = 0; k < 106; k++) putchar('\b'); // 将当前行全部清空,用以显示最新的进度条状态 int j = 0; for (j = 0; j < progress; j++) putchar('+'); // 打印进度条上已经完成的部分,用‘+’表示 for (j = 1; j <= 100 - progress; j++) putchar('-'); // 打印进度条上还有多少没有完成的 printf(" %3d%%", progress); fflush(stdout); } int main() { int i, num = 1; const char *pic = "Loading state:\n"; while (1) { if (101 == num) { // 当num自增到101时... sleep(3); // 程序休眠3秒后退出 } char bar = { 0 }; while (i <= 50) { printf("[%-50s][%3d%%]\r", bar, i * 2); Sleep(60); // 每隔100ms打印一次 i++; } } return 0; } ``` 方法五:使用HTML和CSS实现 ```html