printf("use cesius,and enter q to quit.\n");scanf("%f",& temperture);為什么輸入 q 就結束了求解#include <stdio.h>int main(){const int freezing=0;float temperture;int cold_days =0;int all_days = 0;printf("enter the list of daily low temperture.\n");printf("use cesius,and enter q to quit.\n");while(scanf("%f",& temperture)==1){all_days++;if(temperture<freezing)cold_days++;}if(all_days!=0)printf("%d days total: %.f%% were below freezing.\n",all_days,100.0*(float)cold_days/all_days);if(all_days == 0)printf("NO data entered\n");}
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守候你守候我
TA貢獻1802條經驗 獲得超10個贊
程序運行時現執行語句“printf("use cesius,and enter q to quit.\n");”在界面上輸出“use cesius,and enter q to quit”接著執行到“scanf("%f",& temperture);”時程序會等待鍵盤輸入,當你輸入“q”時,temperture得到你輸入的“q”值,但是之后沒有語句了,所以程序就結束了!

慕運維8079593
TA貢獻1876條經驗 獲得超5個贊
printf("use cesius,and enter q to quit.\n");
scanf("%s",& temperture); //%f是浮點型輸入,字符串輸入應該用%s
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