Question

我的代码如下：

x=0
while (x<3):
    print('purple'),
    print('yellow'),
    print({x})
    x=x+1

我希望它将此数据记录到名为＆＃39; daffodils.csv＆＃39;的csv文件中。我如何做到这一点，以便迭代不会写在彼此之上？

例如，如果我运行程序两次，我的csv文件将如下所示：

purple yellow 0
purple yellow 1
purple yellow 2
purple yellow 0
purple yellow 1
purple yellow 2

由于

Answer 1

只需使用，

with open('test.txt', 'a') as f:
    for x in range(3):
        s = 'purple yellow {}\n'.format(x)
        f.write(s)

或者根据需要使用csv，

import csv

with open('test.csv', 'a') as f:
    writer = csv.writer(f, delimiter=' ')
    for x in range(3):
        writer.writerow(['purple', 'yellow', x])

Answer 2

只需使用：

public Date timeUpdate(Date time){
    //time would be the date you want
    //new Date() creates a new date and within the parentheses is a timestamp allowing
    //you to set the time with an addition of time in milliseconds
    //This code basically adds 1 second to the time

    return new Date(time.getTime()+1000);

    //for a day change inside the parentheses to (time.getTime()+(1000*24*60*60);
}

t = open("daffodils.csv", "a+") x=0 while (x<3): t.write('purple'), t.write('yellow'), t.write({x}) t.write("\n") x=x+1 t.close()以附加模式打开文件，如果a尚不存在，则+会创建该文件。

如何将while循环写入CSV文件

2 个答案: