66 lines
1.2 KiB
C
66 lines
1.2 KiB
C
#include <stdio.h>
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int main ()
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{
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double x;
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double y;
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double v = 0;
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char z;
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printf ( "两位数计算器\n" );
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printf ( "请输入运算方式 (+ or - or * or /):" );
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scanf ( " %c" , & z );
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if ( z != '+' && z != '-' && z != '*' && z != '/' )
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{
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printf ( "你是脑干缺失,还是不识字,看不到“运算方式”这几个大字？" );
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return 1;
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}
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printf ( "请输入第一位数:" );
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scanf ( " %lf" , & x );
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if ( x == 0 && x != 0 )
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{
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printf ( "不知道什么叫数字？\n" );
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return 1;
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}
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printf ( "请输入第二位数:" );
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scanf ( " %lf" , & y );
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if ( y == 0 && y != 0 )
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{
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printf ( "不知道什么叫数字？\n" );
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return 1;
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}
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if ( z == '+' )
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{
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v = x + y;
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}
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if ( z == '-' )
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{
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v = x - y;
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}
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if ( z == '*' )
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{
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v = x * y;
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}
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if ( z == '/' )
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{
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if ( x != 0 )
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{
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v = x / y;
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} else
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{
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printf ( "分母不能为0 \n" );
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return 1;
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}
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}
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printf ( "计算结果为:%lf: \n" , v );
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return 0;
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}
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