1. C Program to Print the 1 to 10 Multiples of a Number #include<stdio.h> int main() { int n; printf("Enter a number: "); scanf("%d", &n); for(int i =1; i<=10;i++) { printf("\n%d*%d = %d ",n,i,n*i); } return 0;
import polars as pl import time # 读取 CSV 文件 start = time.time() df_pl_gpu = pl.read_csv('test_data.csv') load_time_pl_gpu = time.time() - start # 过滤操作 start = time.time() filtered_pl_gpu = df_pl_gpu.filter(pl.col('value1') > 50) filter_time_pl_gpu = time.t...
ORDER BY t.TABLE_NAME, t.COLUMN_ID"""returnpd.read_sql_query(query, self.conn)defexport_schema(self, output_file):"""主导出方法"""try:#获取所有表信息df_summary =self._get_tables_info() df_summary.insert(0,'序号', range(1, len(df_summary) + 1)) self.excel_path=output_file#创...
mysql>create database bookmanage;QueryOK,1rowaffected(0.00sec)mysql>use bookmanage;Database changed 图15显示创建数据库“bookmanage”图书管理系统及选择数据库。 这里同样可以使用“show tables”语句显示该数据库中所有存在的表,但是目前还没有一张表,故返回“Empty set”。 (4) 创建表 创建表使用: create...
The tkinter package ("Tk interface") is the standard Python interface to the Tcl/Tk GUI toolkit. Both Tk and tkinter are available on most Unix platforms, including macOS, as well as on Windows systems.若在命令行执行 python -m tkinter,应会弹出一个简单的 Tk 界面窗口, 表明 tkinter 包已...
Python3实战Spark大数据分析及调度. Contribute to cucy/pyspark_project development by creating an account on GitHub.
bigquery_generate_query_biggest_tables_across_datasets_by_size.sh - generates a BigQuery SQL query to find the top 10 biggest tables by size see also the SQL Scripts repo for many more straight BigQuery SQL scripts GCP IAM scripts: gcp_service_account*.sh: gcp_service_account_credential_to...
1、读取文字 importpdfplumber# 文字提取withpdfplumber.open("Netease Q2 2019 Earnings Release-Final.pdf")aspdf:# 打印指定页first_page=pdf.pages[0]print(first_page.extract_text())# 打印所有页forpageinpdf.pages:print(page.extract_text())
print("输出内容") # 默认换行输出 print("输出内容") # 不换行输出 print('数据1','数据2') # 一次输出多个数据 1. 2. 3. 标准输入 input("提示内容") # 从键盘输入一个信息到程序中 1. 3.3 变量与常量 变量: 临时存储数据的容器 变量的赋值: 变量名=值 ...
function_a中的变量local_a和module level的变量global_a就在不同的命名空间中,所以print(local_a)会报错。 要想使得local_a可以在函数外部被访问到,只需要加一行代码: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 global_a="I am in global scope"deffunction_a():global local_a ...