double x = 3;cout << fixed << setprecision(2) << x;
时间: 2023-10-30 07:49:51 浏览: 104
计算机精度问题(Double)
The output will be:
3.00
Explanation:
- The variable x is initialized with the value 3.
- The stream manipulators fixed and setprecision are used to format the output.
- fixed sets the floating-point output format to fixed-point notation.
- setprecision(2) sets the number of decimal places to 2.
- The value of x is printed to the console using the << operator.
阅读全文