您好,登錄后才能下訂單哦!
def scope_test():
def do_local():
spam = "local spam"
def do_nonlocal():
nonlocal spam
spam = "nonlocal spam"
def do_global():
global spam
spam = "global spam"#spam雖然聲明了global但此處仍是函數(shù)內(nèi)的局部變量
spam = "test spam"
do_local()
print("After local assignment: ",spam)#"test spam"
do_nonlocal()
print("After nonlocal assignment: ",spam)# "nonlocal spam"
do_global()
print("After global assignment: ",spam)#
scope_test()
print("In global scope: ",spam)#do_global函數(shù)會自己定義一個全局變量spam,即使沒有預(yù)先定義的全局變量
https://www.jb51.net/article/114951.htm
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點不代表本網(wǎng)站立場,如果涉及侵權(quán)請聯(lián)系站長郵箱:is@yisu.com進行舉報,并提供相關(guān)證據(jù),一經(jīng)查實,將立刻刪除涉嫌侵權(quán)內(nèi)容。