摘要:
int arr[4][4]={{1,2,3,4},{5,6,7,8},{9,10,11,12},{13,14,15,16}}; int i,j; int ar[4][4]; for(i=0;i<4;i++) { for(j=1;j<4;j++) { ar[i][0]=arr[0][i]; ... 阅读全文
摘要:
int a=1,b=1; while(a++) { b = a*4-303; if(a*5==a+b+303&&b>0&&(a*5)%7==0&&b%((a*5)/7)==0)//&&b%7==0&&b>0) { printf("总数 = %d\n a = %d\n b = %d\n c = %d",a*5,... 阅读全文
摘要:
int main() { int a; int arr[10]={0}; printf("请输入一个数:"); scanf("%d",&a); while(a!=1&&a!=145) { printf("现在的数是%d->",a); int i = 0; while(a > 0) { ... 阅读全文
摘要:
import os import pandas as pd stock_code_list = [] for root,dirs,files in os.walk('stock data'): if files: for f in files: if '.csv' in f: stock_code_list.ap... 阅读全文