import sys, time,ctypes
import platform

STD_INPUT_HANDLE = -10
STD_OUTPUT_HANDLE = -11
STD_ERROR_HANDLE = -12
 
# 字体颜色定义 ,关键在于颜色编码，由2位十六进制组成，分别取0~f，前一位指的是背景色，后一位指的是字体色
#由于该函数的限制，应该是只有这16种，可以前景色与背景色组合。也可以几种颜色通过或运算组合，组合后还是在这16种颜色中
 
# Windows CMD命令行 字体颜色定义 text colors
FOREGROUND_BLACK = 0x00 # black.
FOREGROUND_DARKBLUE = 0x01 # dark blue.
FOREGROUND_DARKGREEN = 0x02 # dark green.
FOREGROUND_DARKSKYBLUE = 0x03 # dark skyblue.
FOREGROUND_DARKRED = 0x04 # dark red.
FOREGROUND_DARKPINK = 0x05 # dark pink.
FOREGROUND_DARKYELLOW = 0x06 # dark yellow.
FOREGROUND_DARKWHITE = 0x07 # dark white.
FOREGROUND_DARKGRAY = 0x08 # dark gray.
FOREGROUND_BLUE = 0x09 # blue.
FOREGROUND_GREEN = 0x0a # green.
FOREGROUND_SKYBLUE = 0x0b # skyblue.
FOREGROUND_RED = 0x0c # red.
FOREGROUND_PINK = 0x0d # pink.
FOREGROUND_YELLOW = 0x0e # yellow.
FOREGROUND_WHITE = 0x0f # white.
 
 
# Windows CMD命令行 背景颜色定义 background colors
BACKGROUND_BLUE = 0x10 # dark blue.
BACKGROUND_GREEN = 0x20 # dark green.
BACKGROUND_DARKSKYBLUE = 0x30 # dark skyblue.
BACKGROUND_DARKRED = 0x40 # dark red.
BACKGROUND_DARKPINK = 0x50 # dark pink.
BACKGROUND_DARKYELLOW = 0x60 # dark yellow.
BACKGROUND_DARKWHITE = 0x70 # dark white.
BACKGROUND_DARKGRAY = 0x80 # dark gray.
BACKGROUND_BLUE = 0x90 # blue.
BACKGROUND_GREEN = 0xa0 # green.
BACKGROUND_SKYBLUE = 0xb0 # skyblue.
BACKGROUND_RED = 0xc0 # red.
BACKGROUND_PINK = 0xd0 # pink.
BACKGROUND_YELLOW = 0xe0 # yellow.
BACKGROUND_WHITE = 0xf0 # white.
# get handle

 
def set_cmd_text_color(color):
    #设置文本颜色
    handle = ctypes.windll.kernel32.GetStdHandle(STD_OUTPUT_HANDLE)  
    Bool = ctypes.windll.kernel32.SetConsoleTextAttribute(handle, color)
    return Bool

def print_white_space(num=1):
    #打印白色的空格
    set_cmd_text_color(BACKGROUND_WHITE|FOREGROUND_BLACK)
    sys.stdout.write(" "*num)
    #flush是关键
    sys.stdout.flush()
    set_cmd_text_color(FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE)
    
def ProgressBar_in_Windows(max=10,ncols=10):
    #以迭代器的方式创建了一个进度条函数
    for i in range(max):
        #time.sleep(1)
        l=int((i+1)*ncols/max)
        r=ncols-l
        print_white_space(l)
        print(" "*r,end ="")
        print(str((i+1)*100/max)+"%",end ="\r")
        yield
    print("\nfinished!")

def ProgessBar():

if __name__=="__main__":
    print(platform.system())
    #ProgressBar(20)
    for i in ProgressBar_in_Windows(20,ncols=20):
        time.sleep(1)
