经过比较两个字符串的值(ASCII字符代码)来比较两个字符串.python
null / NULL / Nil / None
应该被视为空字符串若是字符串相等,你的方法应返回true
,若是它们不相等,则返回false
.web
JS "AD","BC" - >相等 "AD","DD" - >不相等 "gf","FG" - >相等 "zz1","" - >相等(二者都被认为是空的) "ZzZz","ffPFF" - >相等 "kl","lz" - >不相等 null,"" - >相等
def compare(s1,s2): #your code here
Test.assert_equals(compare("AD", "BC"), True, "\'AD\' vs \'BC\'") Test.assert_equals(compare("AD", "DD"), False, "\'AD\' vs \'DD\'") Test.assert_equals(compare("gf", "FG"), True, "\'gf\' vs \'FG\'") Test.assert_equals(compare("Ad", "DD"), False, "\'Ad\' vs \'DD\'") Test.assert_equals(compare("zz1", ""), True, "\'zz1\' vs \'\'") Test.assert_equals(compare("ZzZz", "ffPFF"), True, "\'ZzZz\' vs \'ffPFF\'") Test.assert_equals(compare("kl", "lz"), False, "\'kl\' vs \'lz\'") Test.assert_equals(compare(None, ""), True, "\'\' vs \'\'") Test.assert_equals(compare("!!", "7476"), True, "\'!!\' vs \'7476\'")
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