摘要：
import time scale=100 print("执行开始".center(scale+28,'-')) start = time.perf_counter() for i in range(scale+1): a = '*' * i b = '.' * (scale - i) c = (i 阅读全文
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摘要：
import time scale=100 print("执行开始".center(scale+28,'-')) start = time.perf_counter() for i in range(scale+1): a = '*' * i b = '.' * (scale - i) c = (i 阅读全文
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