C/C ++ statement notes, continuous updates ......

1. In C ++, setw (int n) is used to control the output interval.
For example:
Cout <'s '<setw (8) <'A' <endl;
Displayed on the screen
S
// There are 7 spaces between s and a, and setw () serves only the output followed by it. In the preceding example, 'A' occupies 8 positions, fill in insufficient space. If the input content exceeds the length set by setw (), the output is based on the actual length.
The default content filled by setw () is space. You can use setfill () together with other character filling settings.
For example
Cout <setfill ('*') <setw (5) <'A' <endl;
Output:
* ** A // 4 * and character a occupy 5 locations.

2.% x is the hexadecimal output int, which is implicitly converted ......

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