请教下这个程序出现的问题是什么原因

main()
{
long int i;
int bonus1,bonus2,bonus4,bonus6,bonus10,bonus;
scanf("%ld",&i);
bonus1=100000*0.1;bonus2=bonus1+100000*0.75;
bonus4=bonus2+200000*0.5;
bonus6=bonus4+200000*0.3;
bonus10=bonus6+400000*0.15;
　if(i<=100000)
　　bonus=i*0.1;
　else if(i<=200000)
　　　　　bonus=bonus1+(i-100000)*0.075;
　　　　else if(i<=400000)
　　　　　　　　bonus=bonus2+(i-200000)*0.05;
　　　　　　　else if(i<=600000)
　　　　　　　　　　　bonus=bonus4+(i-400000)*0.03;
　　　　　　　　　　else if(i<=1000000)
　　　　　　　　　　　　　　bonus=bonus6+(i-600000)*0.015;
　　　　　　　　　　　　　else
　　　　　　　　　　　　　　bonus=bonus10+(i-1000000)*0.01;
printf("bonus=%d",bonus);
}

我也是从网上下的100例上的结果运行时出错
题目：企业发放的奖金根据利润提成。利润(I)低于或等于10万元时，奖金可提10%；利润高
　　　于10万元，低于20万元时，低于10万元的部分按10%提成，高于10万元的部分，可可提
　　　成7.5%；20万到40万之间时，高于20万元的部分，可提成5%；40万到60万之间时高于
　　　40万元的部分，可提成3%；60万到100万之间时，高于60万元的部分，可提成1.5%，高于
　　　100万元时，超过100万元的部分按1%提成，从键盘输入当月利润I，求应发放奖金总数？
1.程序分析：请利用数轴来分界，定位。注意定义时需把奖金定义成长整型。　　　　　　
2.程序源代码：
main()
{
long int i;
int bonus1,bonus2,bonus4,bonus6,bonus10,bonus;
scanf("%ld",&i);
bonus1=100000*0.1;bonus2=bonus1+100000*0.75;
bonus4=bonus2+200000*0.5;
bonus6=bonus4+200000*0.3;
bonus10=bonus6+400000*0.15;
　if(i<=100000)
　　bonus=i*0.1;
　else if(i<=200000)
　　　　　bonus=bonus1+(i-100000)*0.075;
　　　　else if(i<=400000)
　　　　　　　　bonus=bonus2+(i-200000)*0.05;
　　　　　　　else if(i<=600000)
　　　　　　　　　　　bonus=bonus4+(i-400000)*0.03;
　　　　　　　　　　else if(i<=1000000)
　　　　　　　　　　　　　　bonus=bonus6+(i-600000)*0.015;
　　　　　　　　　　　　　else
　　　　　　　　　　　　　　bonus=bonus10+(i-1000000)*0.01;
printf("bonus=%d",bonus);
}

错误信息如下：

--------------------Configuration: 1 - Win32 Debug--------------------
Compiling...
1.C
F:\C++练习\1.C(5) : warning C4013: 'scanf' undefined; assuming extern returning int
F:\C++练习\1.C(6) : warning C4244: '=' : conversion from 'const double ' to 'int ', possible loss of data
F:\C++练习\1.C(6) : warning C4244: '=' : conversion from 'double ' to 'int ', possible loss of data
F:\C++练习\1.C(7) : warning C4244: '=' : conversion from 'double ' to 'int ', possible loss of data
F:\C++练习\1.C(8) : warning C4244: '=' : conversion from 'double ' to 'int ', possible loss of data
F:\C++练习\1.C(9) : warning C4244: '=' : conversion from 'double ' to 'int ', possible loss of data
F:\C++练习\1.C(10) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(10) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(11) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(11) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(11) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(11) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(11) : warning C4244: '=' : conversion from 'double ' to 'int ', possible loss of data
F:\C++练习\1.C(12) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(12) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : warning C4244: '=' : conversion from 'double ' to 'int ', possible loss of data
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : warning C4244: '=' : conversion from 'double ' to 'int ', possible loss of data
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : warning C4244: '=' : conversion from 'double ' to 'int ', possible loss of data
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : fatal error C1003: error count exceeds 100; stopping compilation
执行 cl.exe 时出错.

1.exe - 1 error(s), 0 warning(s)

我改了下但是在if语句时出错
#include <stdio.h>
main()
{
long int i;
double bonus1,bonus2,bonus4,bonus6,bonus10,bonus;
scanf("%ld",&i);
bonus1=100000*0.1;bonus2=bonus1+100000*0.75;
bonus4=bonus2+200000*0.5;
bonus6=bonus4+200000*0.3;
bonus10=bonus6+400000*0.15;
　if(i<=100000)
　　bonus=i*0.1;
　else if(i<=200000)
　　　　　bonus=bonus1+(i-100000)*0.075;
　　　　else if(i<=400000)
　　　　　　　　bonus=bonus2+(i-200000)*0.05;
　　　　　　　else if(i<=600000)
　　　　　　　　　　　bonus=bonus4+(i-400000)*0.03;
　　　　　　　　　　else if(i<=1000000)
　　　　　　　　　　　　　　bonus=bonus6+(i-600000)*0.015;
　　　　　　　　　　　　　else
　　　　　　　　　　　　　　bonus=bonus10+(i-1000000)*0.01;
printf("bonus=%d",bonus);
}
错误信息如下怎么改
F:\C++练习\1.C(11) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(11) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(12) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(12) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(12) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(12) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(13) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(14) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(15) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(16) : error C2146: syntax error : missing ';' before identifier 'bonus'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(17) : error C2181: illegal else without matching if
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(18) : error C2146: syntax error : missing ';' before identifier 'bonus'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : error C2018: unknown character '0xa1'
F:\C++练习\1.C(19) : fatal error C1003: error count exceeds 100; stopping compilation
执行 cl.exe 时出错.

1.exe - 1 error(s), 0 warning(s)