python输出内容为拼接,或字符串中带有空格,想打印时候去掉所有空格
i = 1 while i < 4: print("\"",i,"\"",end="") i += 1 # 输出内容为" 1 "," 2 "," 3 "," 4 ", # 数字的前后都带有空格,可以使用 sep="" print("\"",i,"\"",sep="",end="") # 输出的内容为"1","2","3","4",