Python文件循环写入行时防止覆盖的解决方法

 with open(r'F:/PythonFiles/PycharmFile/ssq.csv', 'w', encoding='utf-8-sig', newline='') as csvFile:   csv.writer(csvFile).writerow([col1,col2,col3,col4,col5,col6,col7,col8,col9,col10,col11]) # 给csv文件中插入一行

 with open(r'F:/PythonFiles/PycharmFile/ssq.csv', 'a', encoding='utf-8-sig', newline='') as csvFile:   csv.writer(csvFile).writerow([col1,col2,col3,col4,col5,col6,col7,col8,col9,col10,col11]) # 给csv文件中插入一行