自学第七十九天
16lz
2021-02-15
//#include<stdio.h>//int main()//{//float aboat = 32000.0;//double abet = 2.14e9;//long double dip = 5.32e-5;//printf("%f can be written %e\n", aboat, aboat);//printf("And it's %a in hexadecimal, powers of 2 notation\n", aboat);//printf("%f can be written %e\n", abet, abet);//printf("%Lf can be written %Le\n", dip, dip);//return 0;//}//#include<stdio.h>//int main()//{//float salary;//printf("\aEnter your desired monthly salary:");//\a是发生一声警报//printf("$_______\b\b\b\b\b\b\b");//\b是向左移动一格//scanf("%f", &salary);//printf("\n\t$%.2f a month is $%.2f a year.", salary, salary * 12.0);//\t意思是水平制表符使光标移至该行的下一个制表点,一般是第9列//printf("\rGee!\n");//\r意思是使光标回到当前行的起始处//return 0;//}//#include<stdio.h>//#include<string.h>//#define DENSITY 62.4//定义一个宏【注意】后面没有分号。//int main()//{//float weight, volume;//int size, letters;//char name[40];//printf("Hi! What's your first name?\n");//scanf("%s", &name);//printf("%s, What's your weight in pounds?\n", name);//scanf("%f", &weight);//size = sizeof(name);//letters = strlen(name);//volume = weight / DENSITY;//printf("Well,%s,your volume is %2.2f cubic feet.\n", name, volume);//printf("Also, your first name has %d lettes,\n", letters);//printf("and we have %d bytes to store it.\n", size);//return 0;//}
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