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  1. #include <stdio.h>
  2. int main(int argc, char *argv[])
  3. {
  4.      float a;
  5.      printf("请输入学生的成绩：");
  6.          scanf("%f",&a);
  7.  
  8.     if(a>=90&&a<=100)
  9.         printf("学生的成绩为：A\n");
  10.     if(a>=80&&a<90)
  11.         printf("学生的成绩为：B\n");       
  12.  
  13.     if(a>=70&&a<80)
  14.         printf("学生的成绩为：C\n");   
  15.  
  16.      if(a>=70&&a<60)
  17.  
  18.        printf("学生的成绩为：D\n");   
  19.     return 0;
  20. }
  21.  
Success #stdin #stdout 0s 5280KB
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请输入学生的成绩：学生的成绩为：B
https://ideone.com/07fJXX
language:
C (gcc 8.3)
created:
58 days ago
visibility:
public

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