參考https://www.cnblogs.com/walo/p/10608436.html字符串前加 f import timet0 = time.time()time.sleep(1)name = 'processing'# 以?f開頭表示在字符串內(nèi)支持大括號(hào)內(nèi)的python 表達(dá)式print(f'{name} done in {time.time() - t0:.2f} s')?輸出:processing done in 1.00 s