python – 流程控制基礎習題

 #列印1 到100 的和**

     i = 0
     s = 0
     while i <100:
         i += 1
         s += i
     print(s)
     print(`1+2+,,100=`,s)


#列印字元A~Z

    for i in range(ord(`A`),ord(`Z`)):
    print(chr(i))


#將12345轉換為54321

 

```
     #12345=>54321
     ret = 0
     a = 12345
     while a:
         last = a % 10
        ret = ret * 10 + last
         a = a // 10
     print(ret)

```


- 將12345轉換為`12345`，不要使用str

```
a = 12345
ret = ``
while a:
    #提取最後一個數字
    n = a % 10
    #轉為對應的字元
    c = chr(n + ord(`0`))
    #拼接到ret最前面
    ret = c + ret
    #除10 為下次做準備
    a = a//10
print(ret)

```

**遍歷列表，列印：我叫name，今年age歲，家住dizhi，電話phone**    

```
lt = [
    {`name`: `田馥甄`, `age`: `36`, `info`: [(`phone`, `1383838438`), (`address`, `北京`)]},
    {`name`: `柳巖`, `age`: `33`, `info`: [(`phone`, `139809808`), (`address`, `河南鄭州`)]},
    {`name`: `林志玲`, `age`: `42`, `info`: [(`phone`, `13767655465`), (`address`, `河北石家莊`)]},
    {`name`: `柳慧芬`, `age`: `18`, `info`: [(`phone`, `13737623`), (`address`, `山東濟南`)]},
]
for i in lt:
    print(`我的名字是%s，我的年齡是%s,我的電話是%s，我的家住在%s` % (i[`name`], i[`age`], i[`info`][0][-1], i[`info`][-1][-1]))
```