📅  最后修改于: 2022-03-11 14:46:01.984000             🧑  作者: Mango
# Option one
older_method_string = "%.9f" % numvar
# Option two, preferred in Python 3
newer_method_string = "{:.9f}".format(numvar)
# Option 3 (versions 3.6 and higher)
newest_method_string = f"{numvar:.9f}"