char *str = "3.14" ; double x = atof(str); printf ; "%f\n", x); //prints 3.140000. ... <看更多>

This video explains how to use basic data types in C program. It also describes : - When to use int, float, char and double type of ... ... <看更多>

Don't do that. Converting a time to double is highly inefficient. Moreover, your approach suffers from a rollover issue every 24h. ... <看更多>

Double the Char, double the delicious. Mobile uploads · Dec 11, 2018 ·. View Full Size. LaVonne Zimmerman and 92 others like this. ... <看更多>