c语言编一个学生成绩统计程序

Python026

c语言编一个学生成绩统计程序,第1张

#include

<stdio.h>

void

main()

{

int

i,

n,

reno

float

score[30],

avr,

a,

b,

c

char

name[30][9]

for(i

=

0

i

<

30

i++)

{

printf("%d号的成绩：",

i+1)

scanf("%f",

&score[i])

if(score[i]

<

0)

break

printf("%d号的姓名：",

i+1)

scanf("%s",

name[i])

}

n

=

i

printf("统计不及格人数:\n")

reno

=

0

avr

=

0

for(i

=

0

i

<

n

i++)

{

if(

score[i]

<

60)

{

reno++

printf("%d,

%s\n",

i+1,

name[i])

}

avr

+=

score[i]

}

printf("不及格人数为%d\n\n",

reno)

printf("统计成绩在平均分及平均分之上的学生人数:\n")

avr

/=

nreno

=

0

for(i

=

0

i

<

n

i++)

{

if(score[i]

>=

avr)

{

reno++

printf("%d,

%s\n",

i+1,

name[i])

}

}

printf("成绩在平均分及平均分之上的学生人数为%d\n\n",

reno)

printf("统计各分数段的人数及所占百分比（分数段为<60,60~79,>=80）:\n")

a

=

b

=

c

=0

for(i

=

0

i

<

n

i++)

{

if(score[i]

<

60)

a++

else

if(score[i]

>=

80)

c++

else

b++

}

printf("<60:\t%.1f%%\n60~79:\t%.1f%%\n>=80:\t%.1f%%\n",100*a/n,100*b/n,100*c/n)

}

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <conio.h>

int main()

{

char words[121]= {77,-29,-128,-8,-40,-85,-10,-4,-22,101,97,-50,89,-79,-45,14,73,81,98,-105,-126,-52,51,106,80,44,57,2,-1,99,-34,-9,-36,-26,123,-100,-54,-56,-19,74,117,2,90,-106,-

109,-43,-19,-103,-31,-119,17,-59,-121,49,-112,112,-20,68,-52,-33,-30,-1,-66,117,

109,116,67,-57,105,-99,77,-97,-48,58,106,-65,-47,113,-121,43,9,-63,37,47,84,-65,

-22,59,-31,-124,-69,111,56,79,-72,108,-81,126,5,99,-27,86,93,-102,-50,68,-66,66,

116,36,-110,105,107,-118,88,-8,77,-90,-78,-69,12

}

char suanzi[121]

int n

srand(652)

for(n=0n<121n++)

{

suanzi[n]=(int)(rand()*255)

}

for(n=0n<121n++)

{

words[n]^=suanzi[n]

}

words[120]='\0'

printf("%s",words)

getch()

return 0

}