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a) 分别以左和右对齐方式输出整数,域宽为12;
b) 以八进制、十进制、十六进制输入/输出整数;
c) 实现浮点数的指数格式和定点格式的输入/输出,并指定精度,按实际情况进行调整,直到满意为止;
d) 把字符串读入字符型数组变量中,从键盘输入,要求输入串的空格也全部读入,以回车换行符结束;
-a) to the left and right, respectively, the alignment of the output integer, the domain width
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编写程序通过设置ios::scientific和ios::fixed标志以定点和科学计数法显示浮点类型数据-Write a program by setting the ios:: scientific and ios:: fixed flag with fixed-point and scientific notation floating-point type data show
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编写程序通过设置ios::scientific和ios::fixed标志以定点和科学计数法显示浮点类型数据。
测试:
#include <iostream>
using namespace std
int main()
{
double x = .001234567, y = 1.886e9
//…
return 0
}
-Write a program by setting the ios:: scientific
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定点小数机器表示
定点小数变形补码加减运算
定点小数的原码乘法
浮点数加减运算-The fixed-point decimal machine fixed-point decimal deformation complement addition and subtraction of the original code of the fixed-point decimal multiplication floating-point addition and subtraction
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