函数随带一个格式化字符串和一个可变数目的参数。

The function takes a format string and a variable number of arguments.

youdao

(一元加号)将改变数字字符串值为数值(之前此操作无影响)。

(unary plus) to convert the value to a number if it is a numeric string (previously it was completely ignored).

youdao

(一元加号)将改变数字字符串值为数值(之前此操作无影响)。

(unary plus) to convert the value to a number if it is a numeric string (previously it was completely ignored).

youdao