计应193第一组个人流程——谢永波

from tkinter import *
root=Tk()
root.title("计算器")
root.geometry('350x547')

#显示计算结果
slabel=StringVar()
show=Entry(root,textvariable=slabel,bg="white",justify="right",font=("黑体",16),state="disabled")
show.grid(row=0,rowspan=2,column=1,ipadx=15,ipady=60,columnspan=3,pady=3,padx=3)


deng=Button(root,text="=",bg="lightBlue",font=("黑体",20,"bold"))
deng.grid(row=0,column=4,ipadx=20,ipady=10,pady=3)

dian=Button(root,text=".",bg="lightBlue",font=("黑体",20,"bold"))
dian.grid(row=1,column=4,ipadx=20,ipady=10,pady=3)

#1,2,3,+
y=Button(root,text="1",bg="lightBlue",font=("黑体",20,"bold"))
y.grid(row=2,column=1,ipadx=20,ipady=20,padx=3,pady=3)
e=Button(root,text="2",bg="lightBlue",font=("黑体",20,"bold"))
e.grid(row=2,column=2,ipadx=20,ipady=20,padx=3,pady=3)
san=Button(root,text="3",bg="lightBlue",font=("黑体",20,"bold"))
san.grid(row=2,column=3,ipadx=20,ipady=20,padx=3,pady=3)
jia=Button(root,text="+",bg="lightBlue",font=("黑体",20,"bold"))
jia.grid(row=2,column=4,ipadx=20,ipady=20,padx=3,pady=3)

#4,5,6,-
s=Button(root,text="4",bg="lightBlue",font=("黑体",20,"bold"))
s.grid(row=3,column=1,ipadx=20,ipady=20,padx=3,pady=3)
w=Button(root,text="5",bg="lightBlue",font=("黑体",20,"bold"))
w.grid(row=3,column=2,ipadx=20,ipady=20,padx=3,pady=3)
l=Button(root,text="6",bg="lightBlue",font=("黑体",20,"bold"))
l.grid(row=3,column=3,ipadx=20,ipady=20,padx=3,pady=3)
jian=Button(root,text="-",bg="lightBlue",font=("黑体",20,"bold"))
jian.grid(row=3,column=4,ipadx=20,ipady=20,padx=3,pady=3)
#7,8,9,X
q=Button(root,text="7",bg="lightBlue",font=("黑体",20,"bold"))
q.grid(row=4,column=1,ipadx=20,ipady=20,padx=3,pady=3)
b=Button(root,text="8",bg="lightBlue",font=("黑体",20,"bold"))
b.grid(row=4,column=2,ipadx=20,ipady=20,padx=3,pady=3)
j=Button(root,text="9",bg="lightBlue",font=("黑体",20,"bold"))
j.grid(row=4,column=3,ipadx=20,ipady=20,padx=3,pady=3)
cheng=Button(root,text="X",bg="lightBlue",font=("黑体",20,"bold"))
cheng.grid(row=4,column=4,ipadx=20,ipady=20,padx=3,pady=3)
#0,clear,/
z=Button(root,text="0",bg="lightBlue",font=("黑体",20,"bold"))
z.grid(row=5,column=1,ipadx=20,ipady=20,padx=3,pady=3)
sclear=Button(root,text="清空",bg="lightBlue",font=("黑体",12,"bold"))
sclear.grid(row=5,column=2,ipadx=56,ipady=30,columnspan=2,padx=3,pady=3)
chu=Button(root,text="/",bg="lightBlue",font=("黑体",20,"bold"))
chu.grid(row=5,column=4,ipadx=20,ipady=20,padx=3,pady=3)

#函数
slist=[]
elist=[]
unit=""

def into(event):
    global unit
    slabel.set(show.get()+event.widget['text'])
    if event.widget['text'] in ["+","-","X","/"]:
        slist.append(unit)
        slist.append(event.widget['text'])
        unit=""
    else:
        unit=unit+event.widget['text']

def den(event):
    global unit
    global slist
    global elist
    slist.append(unit)
    unit=""
    for i in range(len(slist)):
        if(slist[i] in ["X"]):
            slist[i+1]=float(slist[i-1])*float(slist[i+1])
            elist.pop(len(elist)-1)
            continue
        elif(slist[i] in ["/"]):
            slist[i+1]=float(slist[i-1])/float(slist[i+1])
            elist.pop(len(elist)-1)
            continue
        else:
            elist.append(slist[i])
    for j in range(len(elist)):
        if(elist[j] in ["+"]):
            elist[j+1]=float(elist[j-1])+float(elist[j+1])
            j=j+1
        elif(elist[j] in ["-"]):
            elist[j+1]=float(elist[j-1])-float(elist[j+1])
            j=j+1
    unit=round(elist[len(elist)-1],2)
    slabel.set(str(unit))
    slist=[]
    elis=[]

def clear(event):
    unit=""
    slabel.set(unit)

#事件
y.bind('<Button-1>',into)
e.bind('<Button-1>',into)
san.bind('<Button-1>',into)
jia.bind('<Button-1>',into)
s.bind('<Button-1>',into)
w.bind('<Button-1>',into)
l.bind('<Button-1>',into)
jian.bind('<Button-1>',into)
q.bind('<Button-1>',into)
b.bind('<Button-1>',into)
j.bind('<Button-1>',into)
cheng.bind('<Button-1>',into)
z.bind('<Button-1>',into)
sclear.bind('<Button-1>',clear)
deng.bind('<Button-1>',den)
dian.bind('<Button-1>',into)
chu.bind('<Button-1>',into)
mainloop()