使用的函数时需要注意以下事项：

2.占位符能够借助位置参数或者关键字参数来予以填充, 比如说, “{0} {1}”.(“Hello”, “World”), 又或者是“{name} {age}”.(name = “Alice”, age = 30)。

3.可以通过索引来访问参数, 也能够借助名称来访问参数, 比如说 “{0} {1}”。

“Hello”, “World”

“”, “”

4.能规定格式化的样式, 像 “{:.2f}”.(3.) 会留存两位小数。

5.能够运用字典以及列表这类数据结构当作参数的情况, 举例来说, 像 “{0} {0}”.（其中所包含的是这样一组数据, 即{"name": “Alice”, “age”: 30}）。

6.要是打算在字符串里头含有大括号{}, 能够运用双大括号{{}}来实施转义, 就像 “{{Hello}}”.()。

7.变量能够用于接收函数所给出的返回值情形下, 举例而言, 存在这样一种情况, 即 = “{:.2f}”.(3.)。

8.转义字符能够在格式化字符串里被运用, 举例来说, “\n” 所代表的是换行符。

10.在格式化字符串那儿,能够被使用的是各种各样有格式化性质的指令的, 比如说, %s 它所代表的意思是字符串的, %d , 其代表的意义是整数的, %f , 它代表的可是表示浮点数等这一类情况的。Csdn.tphep.cN/Article/details/73864.shtml
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